In this neat experiment, we will know how an eye lens works.Things Required:Magnifying lensSheet of typing paperRuler Directions:Darken a room. Hold the magnifying lens about 5 feet (1½ m) from an open window. Position the paper on the opposite side of the lens from the window.Slowly, move the paper back and forth from the lens […]
Make the following cookies on two different days-one sunny and dry, the other rainy. The cookies will taste good on both days.Things Required:1/2 cup of butter or margarine1/4 cup of sugar1/2 tsp vanilla extractWooden spoon1 cup (112 g) of flour plus 1 to 3 extra Tablespoon (8-24 g)A mixing bowlA cookie sheet Directions:Let the margarine
The idea is to determine your sensitivity to taste.Things Required:ToothpicksBlindfoldSpring-type clothespinAppleOnionDirections:Take an adult to peel and cut the apple and onion into small bite-size pieces of equal size. Ask a helper to assist you with the experiment. Without seeing or smelling, the person will decide on the identity of the food by taste only. Blindfold
Certain herbs, such as parsley, chervil and chives are preserved better by freezing than by drying. The secret is to package them so that you may keep air out and moisture in.Things Required:A bunch of herbs (parsley, basil, dill, sage, thyme or chives)Thick small plastic bags, jars or freezer containersPaper towelsLabels and felt-tipped penDrinking straw
You will need: Balloon Woollen material (sockor sweater) Energy-saving light bulb Challenge your friends to try and light a bulb, even for a second, but without using any wires. When they all admit defeat, perform this simple trick in physics. INSTRUCTIONS Wait until it is completely dark. Take your balloon and rub it for a
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You will need: A glass 2 forks A toothpick Matchsticks Cork Amaze your friends with these gravity defying forks! By the way, they aren’t floating and nor it is a magic trick. It’s just physics. But you might have to practise a little beforeactually performing for an audience. INSTRUCTIONS Take 2 forks and insert themon
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This test is to demonstrate the semi-permeability of a cell membrane.Things Required:Egg from experiment The Undressed EggJar with a lid (the egg must fit in the jar)Corn syrup Directions:Pour 3 inches (7½ cm) of corn syrup into the jar. Carefully place the egg in the jar. Close the lid, and allow the jar to stand
A raisin starts life as a grape and a prune as a plum. What happens to these juicy fruits? See for yourself.Things Required:Launch of white seedless grapes2 drying trays (make your own by spreading cheesecloth or wire mesh over old frames or kitchen cooling racks)A pot of boiling waterA strainer4 empty juice cans or large
You will need: Comb or an inflatedballoon Salt Pepper Woollen material (like asock or sweater) Take the help of static electricity to prove to your mother that you can do the impossible, that is mixing up salt and pepper only to separate them again very easily. INSTRUCTIONS On a flat surface, like a tray, mix
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You will need: A sheet or strong thickcardboard or plywood 6 thread reels A small cardboard box String (use good-qualitystring, so it doesn’t break) 6 nails A small weight, like a keyor heavy screw We all have travelled in an elevator or as we liketo call it-lift–at some point of time or the other. So,why
In this experiment, we will observe the semi-permeability of a cell membrane.Things Required:1 raw egg in its shell1 jar with a lid (the egg must fit inside the jar)Clear vinegarFlexible measuring tape Directions:Measure and record the circumference around the centre of the egg. Record the appearance of the egg. Place the egg inside the jar.
You will need: Styrofoam plate (use-and-throw type) Aluminium pie plate Small piece of woollenfabric (like a sock oryour sweater’s sleeve) Pencil with a brand neweraser at the top Board pin (the type youput on a school board) Thunder and lightning never seize to amaze us. Those bright jagged bars to light shooting towards the earth
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The function of this experiment is to observe the movement of particles through a membrane.Things Required:1 plastic sandwich bag1 twist tieTincture of iodineCornstarch2 measuring cups (500 ml)Eye-dropperMeasuring spoon -tablespoon (15 ml)Directions:Fill a cup one-half full with water, and add 20 drops of iodine. Fill a second cup with water and stir in one spoon of
You will need: 2 tall glasses (of the sameheight) A long needle Ruler Thin long candle Knife or scissors Pliers Matchstick Newspaper or any sheetof paper Create a beautiful flaming see-saw with this simple trick. All you have to do is apply Newton’s laws to make magic. INSTRUCTIONS Even though this trick looks like a
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If you want light, fluffy muffins, take care to treat the batter right. See what happens if you don’t.Things Required:1 cup (112 g) all-purpose unbleached flourA small egg3 tablespoonfuls of sugar1 teaspoonful of baking powder1/4 ground cinnamon1/4 teaspoonful of ground nutmeg2 large bowlsA wooden spoon1/4 cup (60 ml) of oil1/2 cup (120 ml) of milkA