121 Plus 9 Biology Experiments

121 Plus 9 Biology Experiments121 Plus 9 Biology Experiments trains children to experiment and learn about the science of living organisms. Try these cool experiments with your little ones and enjoy the subject!🧪🔬📚

Weather and Cookies (Biology Experiments)

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 …

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All Taste Same (Biology Experiments)

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 …

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Freezing Herbs (Biology Experiments)

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 …

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In But Not Out (Biology Experiments)

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 …

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Model Muffins (Biology Experiments)

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 …

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Oily Feathers (Biology Experiments)

This experiment shows you the horrible effects that polluting detergents can have on birds.Things Required:1 quart (1 litre) clear glass bowlMeasuring cup (250 ml)Liquid oilPowdered washing detergentMeasuring spoon-teaspoon (5 ml) Directions:Pour 1 cup of water into the bowl. Add 1 spoon of liquid oil. Observe the surface of the water. Sprinkle 2 spoons of powdered …

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Powder versus Soda (Biology Experiments)

What happens if we add baking powder to an acid?Things Required: 2 half-filled glasses sour milk or orange or lemon juice1/2 teaspoonful of baking powder1/2 teaspoonful of baking sodaDirections:Add baking powder to one of the half-filled glasses of sour milk and baking soda to the other glass.This Is What Happens:The sour milk with the baking …

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Baking Powder (Biology Experiments)

How is baking powder different from baking soda?Things Required: 2 glasses of water1/2 teaspoonful of baking soda1/2 teaspoonful of baking powder Directions:Add the baking powder to one glass of water. Add the baking soda to the other.This Is What Happens:The water with the baking powder bubbles. The water with baking soda does not.Science Behind It:Baking …

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Ground Temperature (Biology Experiments)

Why do desert animals spend their day underground? This is explained in this experiment.Things Required:2 outdoor thermometersTrowelWhite towel Directions:Dig a hole 4 inches (10 cm) deep and large enough to insert one thermometer. Cover the hole containing the thermometer with the towel. Lie the second thermometer on top of the ground. Wait for 5 minutes …

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Baking Soda (Biology Experiments)

Baking soda is sodium bicarbonate, sometimes called bicarbonate of soda. Some people use it for brushing their teeth, for absorbing refrigerator odours or as an antacid for indigestion!But we can also use baking soda to puff up bread and cake. Things Required:2 teaspoonfuls of baking sodaA glass of orange juice or lemonadeA glass of waterDirections:Add …

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Saving Water (Biology Experiments)

How camels can live in the desert for weeks without drinking water. There is the answer.Things Required:Hand mirror Directions:Breathe onto the mirrorThis Is What Happens:The mirror becomes fogged with tiny droplets of water.Science Behind It:Exhaled breath of humans as well as camels contain water vapour. Some of the water in breath goes into the air, …

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Colourations, Environment and Camouflage (Biology Experiments)

In this easy experiment, we will try to examine the camouflaging technique of animals.Things Required:Red, transparent, plastic folderPale yellow crayonWhite typing paper Directions:Draw a bird on the white paper with the yellow crayon. Cover the drawing with the red folder.This Is What Happens:The yellow bird disappears.Science Behind It:Both the yellow bird and red folder are …

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Alice’s Secret Magic Pill (Biology Experiments)

In Wonderland, Alice ate a little pill and grew and grew and grew. Do you suppose it was made of yeast?Things Required:1/4 cup (60 ml) of warm water1 tablespoonful of sugar1/2 package of dry yeast2 bowls3½ cups (392 g) of flourA measuring cup3/4 cup (180 ml) of waterPinch of saltWax paper or plastic wrapDirections:Put the …

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Night Crawlers (Biology Experiments)

The purpose of this unique experiment is to determine if earthworms respond to different light waves.Things Required:Earthworms (purchase at a bait shop)2 torchesRed cellophane2 shoeboxes with lidsTapeScissorsPaper towelsNotebook paperDirections:Prepare both shoeboxes by putting a circular hole in one end of each lid. The hole should be smaller than the end of the torch. Tape notebook …

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Earthworm Farming (Biology Experiments)

Let’s produce an environment suitable for earthworms.Things Required:1 quart (litre) jar2 cups (500 ml) of soil1 cup (250 ml) humus (partially decayed leaves and roots)Earthworms (from a bait shop or dig your own)Apple peelingsDark construction paperrubber band Directions:Pour the soil into the jar. Moisten the soil with the water. Sprinkle the humus over the soil. …

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Sensitive Earthworms (Biology Experiments)

Have you ever wondered which one end of an earthworm is more sensitive to odours. Let’s find out.Things Required:Earthworms (purchase at a bait shop or dig up your own)Paper towelCotton ballsFingernail polish removerDirections:Place several worms on a paper towel moistened with water. Wet the cotton ball with fingernail polish-remover. Hold the wet cotton ball near, …

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