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Showing posts from February, 2012

Kids Projects at Home

Simple Kids Crafts is a video blog dedicated to reviving the old art of handicrafts for people of all ages. How do oil spills affect aquatic plants? A Miniature Solar Panel Fire Water Balloon Make Clouds in a Bottle Secret Messages Make a Rocket Make a Hovercraft Make an Anemometer Make a Sundial Make a Radio Make an Electroscope Make a Stethoscope Make a Telescope Make a Periscope Make a Camera Bending a stream of water with a comb Lighting a bulb without electricity Simple Motor Cotton Ball Rocks? Salt-Absorbing Art and Science Color Changing Glue Art Baking Soda Clay Oil Sun Catcher Grow a Pineapple Plant! Bead Bowls Wow, what an Air-Gun Funny Diver ! Water boils without fire Ice with Boiling Water Water that boils instantly Water boils in a Paper Pot Soap-driven Boat Pulse Moves Pin Pretty Garden—without Plants Picture made by Fire Magic Pictures Dancing Doll Smoke Goes Down The Dancing Coupl The Umbrella Dance Magic Butterfly Colorful

Flying Tea Bag Rocket

Materials: Tea bag Nonflammable surface (a flat dinner plate works well) Matches or lighter Scissors How to: Remove the staple, string, and label from the tea bag. If your bag of tea is not open on its ends, cut both ends off and empty out the tea into the trash. Unfold the bag of tea so that it is straight. Use your fingers to open up the bag. You will end up with a cylinder shape. Stand the cylinder on one end on your dinner plate. With a lighter, ignite the top of the cylinder. Watch the flame travel down from the top of the cylinder. The tea bag will rise up like a rocket!  Explanation: Air Density- the flame heats the air inside the cylinder. Warm air rises above the cooler, less dense air (convection currents). The tea bag then turns to ash that is super lightweight and is lifted by the smoke!

Stalactites

Purpose To naturally grow stalactites. Materials Water, two tiny nails, eighteen inches of string, two one quart milk bottles, and Epsom salts. Experiment Cut the tops off of the two milk containers. Put fifteen teaspoons of Epsom salts and two cups of warm water into each carton. Mix well. Soak the string in one of the containers. Tie a nail to each end of the string as a weight. Hang one end of the string in each of the cartons, which should be placed about a foot apart. Store the cartons somewhere that they will not be disturbed for a couple of weeks. What's forming on the string? **Are there differences information time among stalactites?

Seismology "Recorder"

Stating the Problem - The Big Question How does a seismograph record the magnitude of an earthquake? Materials * Scissors * Ruler * String * Masking Tape * 5-oz (150-ml) Paper Cup * Adding-machine Paper *Black Marking Pen * 5 ounces (150 ml) small rocks * Modeling Clay * Sharpened Pencil *Cardboard Box, measuring about 12 inches (30 cm) on each side * Adult Helper Planning the Procedure 1. Ask an adult to prepare the box as follows: *cut the lid off the box, then turn the box on its side so that the opening faces outward. *Cut a 2-inch (5-cm)-diameter hole in the center of the top of the box. *Cut two t-by-4-inch (1.25-by-1O-cm)slits in the box. Make the first slit in the center of the bottom, near the opening. Make the second slit, in line with the first slit, in the back of the box. 2. Cut a 24-inch (60-cm) section of adding-machine paper. 3. Thread the strip of paper through the slits in the box so that about 2 inches (5 cm) of paper extends pa

A Rheostat

Purpose To prove that electrical current decreases as resistance increases, and to build an instrument that will test this-a rheostat. Materials A large square battery and two short lengths of wire (probably from a hardware store), a small light bulb and socket, a knife, and a lead pencil. Experiment Cut the wood away from a lead pencil until you have exposed about two inches of the lead. Connect one side of the miniature socket with its bulb to one pole of the battery. Strip the ends of the loose wires so that they are no longer insulated. Press the two exposed ends to the lead. If the ends are close together, the bulb will light. As the distance between the two ends is increased, the light intensity decreases.  Why does this happen? **Lead is a very poor conductor, a resistor, and as the resistance is increased, the current decreases.

How do atoms and molecules arrange themselves in minerals?

Materials * Large, shallow Baking Pan * 1 teaspoon (5 ml) dishwashing liquid Planning the Procedure * Tap Water * Spoon * Drinking Straw 1. Fill the pan half full with water, then add the dish washing liquid. 2. Gently stir with the spoon to thoroughly mix the liquids without producing any bubbles. 3. Place one end of the straw beneath the surface of the water. 4. Slowly and gently blow through the straw to make a cluster of 5 to 15 bubbles. CAUTION: Only exhale through the straw. Do not inhale. 5. Move the straw to a different location and blow a single bubble. 6. With the straw, move the bubble so that it touches the bubble cluster. 7. Move the straw to a different location and blow through the straw as before to make a cluster of 5 to 15 bubbles. 8. With the straw, move one bubble cluster so that it touches the other bubble cluster. Results The single bubble attaches to the bubble cluster. The two clusters of bubbles join, making one clus

Human Machine

Stating the Problem - The Big Question What kind of simple machine is your forearm? Materials Plastic Bucket with a Handle Planning the Procedure 1. Place your elbow on a table so that your forearm lies flat and your hand extends straight out over the table's edge. The palm of your hand should be face up. 2. Place the handle of the bucket in the hand of your extended arm. 3. Lift your forearm, but do not raise your elbow from the table. Results As the height of your forearm above the table increases, the height of the bucket also increases.  This project is Tom Janice VanCleave's book, Guide to the Best Science Fair Projects, New York, Jossey-Bass Publisher, A Wiley Imprint, 1997. The Guide is available on line at: SchooDoodle.com Why? A lever is a simple machine, consisting of a rigid bar and a fixed point of rotation called a fulcrum, that is used to life or movethings. In a third-class lever, such as your forearm, the effort force (

Crystal Gardens

Materials • 3 clean, dry sponges • Aluminum pie plate or cake pan • Glass measuring cup • 1/4 cup table salt • 1/4 cup water • 1/4 cup laundry bluing (You can buy bluing at the grocery store under the brand name of Mrs. Stewart’s Liquid Bluing.) • 2 tablespoons household ammonia • Mixing bowl • Metal spoon • Blue and green food colouring Instructions 1. Arrange the sponges in the pie plate. (You can cut the sponges to fit in the pie plate if needed.) 2. Pour the salt, water, bluing, and ammonia into the mixing bowl and stir well to mix. 3. Pour this mixture over the sponges and then spoon out the rest of the thick portion, spreading it out evenly over the sponges. 4. Sprinkle drops of food colouring randomly on the sponges. 5. Let the pan sit. It may take hours or even days to see the results. Results In a crystal, atoms or molecules join together in a pattern that repeats itself over and over to create a certain shape. A crystal gro

Potato Battery

Materials Required: potato plate 2 pennies 2 galvanized nails three 8 inch lengths insulated copper wire, each with 2 inches of the insulation stripped off one end digital clock with attachments for wires Procedure: First, cut a potato in half and put the two halves on a plate so they stand on their flat ends. The plate is there to keep your table clean. Then, wrap the end of one piece of wire around a galvanized nail and wrap the end of a second piece of wire around a penny. Stick the nail and penny into one half of the potato so that they're not touching each other. Next, wrap the third piece of wire around the other penny and put it into the other half of the potato. Put the other nail into the second half of the potato, but this nail should not have wire wrapped around it. Now, connect the wire from the penny on the first half of the potato to the nail that has no wire on it in the second half of the potato. Finally, touch the free ends of the wires to

Create some rings of Smoke

Aim: The aim of this science fair project is to create some rings of smoke Materials Required: A box with a lid or opening A suitable or a material to seal the opening A source of smoke Procedure: Cut a hole of 2 inches on the side opposite to the opening of the box. Now fill the box with smoke. When full immediately seal the box with a lid or cover Gently squeeze or tap the box and see rings of smoke escaping through the hole.

Magnetic circles

Aim: To conduct a simple experiment to demonstrate how a current carrying conductor generates a magnetic field. Materials required: A one foot long coat hanger wire (With any insulation scraped off). A wooden stand with a flat surface at around halfway height. 5 or 6 small compasses. A 6 volt battery. Two electrical lead wires with alligator clips Procedure: Make a hole in the centre of the flat surface of the stand and pass the coat hanger wire through it so that it is suspended vertically. Arrange the 6 compasses in a circle around the wire on the flat surface. Attach the lead wires to the battery terminals. Leave the other ends of the wires free for now. Observe the compasses now. You will see that all compasses point in the same direction, towards magnetic north. Now connect the battery terminals to the coat hanger wire using the lead wires. Observe the orientation of the compass needles now. Each compass will point in a direction tangential to a circ

Blind Spot in Eyes

Aim: To find and understand the blind spot of your eye with a simple experiment. Materials required: A stiff piece of paper of card approximately 8 x 10 cm in dimension. A metre ruler. A pencil. Procedure: Draw a dot and a cross on the paper at the same level, a few inches apart from each other. Hold the paper or card at arm’s length at eye level so that the dot is on the right side. Keep your right eye closed and look directly at the dot with your left eye. In the beginning you will also be able to see the cross. Bring the card closer to your face, focussing on the dot but also seeing the cross. As you bring it closer, at one point the cross will disappear then reappear as you bring it further closer. Next, draw a straight line through the cross and dot and repeat the experiment, focussing on the dot with your left eye. As you bring the card closer, the dot will disappear but the line will still appear continuous. Scientific explanation: W

Fooling Your Brain with a Mirror

Aim: To prove that what we see is often affected by what we expect to see with the help of the mirror image experiment. Materials required: 1. Mirrors – 2 in number, square in shape, 12 inches (30 cm) a side, could be either made out of plastic or glass. 2. Epoxy glue and duct tapes. 3. Wooden dowels – 2 in number with diameter as 1 inch (2.5 cm) and 12 inches (30 cm) long. Procedure: 1.      Stick the mirrors together by pasting their backs. If you have a glass mirror then for safety, tape their edges using the duct tapes to seal the sharp edges. Take the two wooden dowels and paste them right in the centre of the mirrors vertically. 2.      Hold the dowels with each hand and as you look at one side of the mirror move the hand which is on the other side. What do you actually see? What happens? Your brain expects the image in the mirror to move as it is fooled to believe that the image it sees is actually your other hand. Thus when you move yo

Balloon Controlled Roller

Aim: To make a roller rotate with the help of a balloon. Materials Required: 1.      An empty cylindrical soda can. 2.      An inflated balloon. Procedure: 1.      Place the can on a smooth horizontal table or floor and hold the can such that the can stays still. 2.      Rub the balloon on your hair or take any woolen cloth and rub the balloon on it vigorously. 3.      Next take the balloon and hold it about an inch away from the can. We will see the can will slowly start to roll. 4.      Then make the balloon move by maintaining the distance and we will see that the can also starts to move along with the balloon. 5.      If we bring the can to the other side we will see that the can will follow the balloon. Scientific Explanation: This is possible because of static charge. When we rub the balloon on our head the balloon gets charged with static electricity and polarizes opposite charge on the can. This develops a force of attraction a

Snoring Test

Aim: The aim of this fun science fair project for kids is to conduct a simple experiment to understand how snoring works. Materials required: A sheet of wax paper. A ruler. A pair of scissors. Procedure: Cut out a 15 cm or 6 inch square piece of wax paper. Hold the paper by the sides and bring it up to your lips. Hum a tune and observe the sound. Scientific explanation: When you hum a tune with the wax paper up against your lips, the wax paper starts vibrating. This creates a sound which is similar to the sound of snoring. Snoring is caused by vibration of soft tissues inside the mouth. When you are sleeping, the hanging piece of skin at the top of the throat comes down because of gravity and blocks the airway a little. When you breathe, the air flow causes the soft tissue to vibrate like the wax paper in the experiment, thereby creating the characteristic snoring sound.

Swirl milk in a bottle without touching it

Aim: The aim of this science fair project is to create a swirling effect in milk without touching it. Materials Required: One glass of non skimmed milk. (This experiment will work better with milkof higher fat content.) Food colours Vegetable oil How to do the experiment: Without any disturbance, keep the glass of milk on the table. Add single drops of coloring materials followed by a drop of vegetable oil. Make sure that you add them without causing disturbance to the milk. For this let the drops slide down on the inside of the glass bottle to the milk. Observe after a short time, the colours swirl and mix. We can try the same experiment with different fat percentages and can watch how it affects the patterns or rating of swirling. Scientific Explanation: We know that oil is soluble in fat but not in water. Since only small amount of fat is present in milk, it is considered mostly as water. So for some time, the oil will remain over the water cont

Desalinate Sea Water

Introduction The purpose of this experiment is to demonstrate how the solar system, specifically the water cycle, produces fresh drinking water through desalinate of sea water. I chose this problem because I wanted to show people about desalinate sea water. Basically we are trying to find out how the solar system produces fresh drinking water through desalinate of sea water. Hypothesis I hypothesize the solar system can produce desalinate sea water by evaporating and condensation. Materials and Methods Iodized Salt Bottled Drinking Water/Tap Water Heavy Ceramic Cup or Mug Large Glass Bowl Plastic Cling Wrap A Rock or Small Weight Sun  1. Pour the drinking water into the cup or mug so that it's about 1 inch deep. 2. Mix some of the salt into the water. Add enough so the water tastes salty. *If you drink some of the water, make sure to re-add water so it's at a depth of about 1 inch.  3. Pour the salted water from the cup into the bowl.  4

How does caffeine influence soybean plant growth?

Purpose/ Question: How does caffeine influence soybean plant growth? Independent Variable: The independent variable is the solution used to water the plants, which are water, caffeine solution and a coffee mixture. Dependent Variable: The dependent variable is the growth of the soybean plants.  Constants: The amount of sunlight and water are constants, as are the sizes of the plants’ containers, temperature of environment, and the concentrations of caffeine and coffee . Hypothesis:   Coffee can certainly stimulate growth in plants, because of its high concentration inessential ingredients that promote plant growth that can be found in many commercial fertilizers. Materials: ü   1 packet of soybean seeds ü   3 gardening pots ü   Soil, no additives ü   Gardening utensils ü   Tap water ü   Caffeine tablets ü   Coffee powder ü   2 beakers ü   1 measuring cylinder ü   1 digital weighing scale ü   1 black marker     P

Will the balloon racer go farther with or without weight?

Hypothesis If I add various weight to the middle of the balloon racer, then it will move farther than a car without weight. Problem Will the balloon racer go farther with or without weight? The following is the procedure used to make my car: Materials for Balloon Car Racer: Piece of cardboard 1 rubber band 1 balloon 4 wheels 2 non-flexible straws 1 flexible straw Tape Step 1 :  Cut a piece of cardboard measuring 8” x 6”.  Decide which side is going to be the top and which one is the bottom. Step 2 :  On the bottom side of the cardboard, place two straws (without a flexible center) about 1” from the front and back of the cardboard. Step 3 :  Insert a dowel rod, smaller than the straw, inside the straw.  This will be the axle rod of the car. Step 4 :  Place four wheels (I used wooden, premade wheels), on the ends of the dowel rod. Step 5:  Tape ends of dowel rod so wheel won’t fall off. Step 6 :  Take a straw with a flexible midd

Your Sight and Heartbeat are connected ?

Purpose I want to find out if your heartbeat will respond more to a vibrant color or dull color Materials First of all you are going to need some materials.  • Stop watch • Different variety of color paper • 3 people • Paper  • Pencil Get ready to find out the truth behind the heartbeat… Hypothesis In my personal opinion I think people’s heart beat will be faster with vibrant colors (yellow, red, and blue) while with dull colors (gray) your heartbeat will be slower. I think this because your eyesight would be alarmed with more alerting colors than boring colors which will affect your heartbeat. Procedure Ok now we are going to perform this experiment. Make sure you know what your materials are. 1. Take your three people and make one stare at a vibrant color (yellow, red, blue) for 60 seconds. 2. Take his pulse for one whole minute. 3. Write it down (don’t forget it). 4. Then take the same person and make him stare at a

How to Make a Balloon Dog ?

When you were a kid, do you remember having birthday parties with clowns and magic? There were balloon animals and the clowns were experts in making them and the kids were enthralled. It was a magical moment, getting to see a hotdog shaped balloon turning into an animal. Making a balloon dog takes practice. Like any craft, it should be practiced and mastered to be a success. To make one, one should have a long skinny balloon. It is called the 260Q-type of balloon. Blow it. You can use a hand pump or football pump to blow the balloon. Leave at least 1 1/2 inch of deflated balloon. Tie this end. Make a twist at the end of this balloon, two inches from the knotted end. Then make two more twists, one inch apart from each other. Hold the balloon well, do not let go. This will ensure that the balloon will not untwist itself. The technique when twisting a balloon is to twist the balloon in the same direction, with two or three turns. Twist the smaller balloon bubbles together,

How do oil spills affect aquatic plants?

Topic Information :  Effects of oil spills  This science fair project was performed to find out how oil spills will affect aquatic plants. Testing was done using hydrilla plants in water with and without a layer of oil covering the surface. Oil is an organic fluid that has a lower density than water. When oil is spilled on water, it will float on the water surface and form a thin layer. Oil is not soluble in water. This thin layer of oil on the water surface is called sheen and it can kill the aquatic animals and plants that live beneath the water if it is not removed quickly. The presence of oil on the water surface will blocks sunlight and prevents air from reaching the plants that live in the water. This will prevent the plants from producing food through photosynthesis. Without photosynthesis, the plants will not be able to grow, germinate and produce oxygen. If this condition persists, the plants will eventually die. Aquatic animals are also not spared by oil sp

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Kids Projects at Home

Simple Kids Crafts is a video blog dedicated to reviving the old art of handicrafts for people of all ages. How do oil spills affect aquatic plants? A Miniature Solar Panel Fire Water Balloon Make Clouds in a Bottle Secret Messages Make a Rocket Make a Hovercraft Make an Anemometer Make a Sundial Make a Radio Make an Electroscope Make a Stethoscope Make a Telescope Make a Periscope Make a Camera Bending a stream of water with a comb Lighting a bulb without electricity Simple Motor Cotton Ball Rocks? Salt-Absorbing Art and Science Color Changing Glue Art Baking Soda Clay Oil Sun Catcher Grow a Pineapple Plant! Bead Bowls Wow, what an Air-Gun Funny Diver ! Water boils without fire Ice with Boiling Water Water that boils instantly Water boils in a Paper Pot Soap-driven Boat Pulse Moves Pin Pretty Garden—without Plants Picture made by Fire Magic Pictures Dancing Doll Smoke Goes Down The Dancing Coupl The Umbrella Dance Magic Butterfly Colorful

Fire Water Balloon

Materials The materials required for this science fair project: - 1 matchbox - 1 candle - 1 yellow colored balloon - 1 blue colored balloon - Half a cup of water Procedure 1. For this experiment, the independent variable is whether the balloon is filled with water or not. The dependent variable is what happens to the balloon when it is placed above the lit candle. This is determined by observing the balloon. The constants (control variables) are how much the balloon is inflated and the amount of water in the balloon. 2. Inflate the yellow colored balloon and tie it up. 3. Pour half a cup of water into the blue colored balloon before inflating it to the same size as the yellow color balloon and tie it up. 4. Light up the candle. Be careful when using match sticks to avoid causing fires, or burning yourself. 5. Hold the yellow colored balloon on top of the lit candle. Observe and record what happens. 6. Hold the blue colored balloon on top of