| Home-school lessons are more enjoyable and | | | | sure the balloon has no air in it and place the |
| memorable when they include a hands-on activity. | | | | mouth of the balloon over the lip of the bottle. |
| It is one thing to study biology, it is another to | | | | Place the bottle in a dark, warm location and leave |
| discover it. Use these simple biology experiments | | | | it for a few days. Check it daily and look for any |
| to help your child understand her lessons. The | | | | changes in the balloon. As the yeast changes the |
| experiments use everyday items that you | | | | sugar into energy, an carbon dioxide gas bubbles |
| already have in your home. Teach your young | | | | are formed and should cause the balloon to |
| biology student about fungi using everyday | | | | expand.tamil nadu education |
| household yeast. Because yeast down not | | | | Plant biology is ripe for experiments. The effects |
| contains chlorophyll, yeast cannot produce its own | | | | of the sun on plants can be demonstrated in |
| food. Demonstrate how yeast can find food | | | | different experiments. Try these with your plant |
| through the process of decomposing with this | | | | biologist. You will need a house plant, dark |
| simple experiment.bangalore education | | | | construction paper and tape. Cover one leaf of a |
| You will need to gather two plastic bags, a | | | | house plant with dark construction paper. Tape |
| banana, dry yeast and a teaspoon. Cut two similar | | | | the paper on all four sides to make sure the leaf |
| slices from the banana and place one piece of | | | | doesn't get exposure to the sun. Allow the rest |
| banana in each plastic bag. Measure one-half | | | | of the plant to receive ample sunlight. After a |
| teaspoon of yeast and sprinkle the yeast on one | | | | week, remove the paper and check the leaf for |
| banana slice. Mark the bag with the yeast and seal | | | | effects. Without the presence of the sun, the leaf |
| both bags. Let them set for one week. Check the | | | | is unable to make chlorophyll. Without the |
| bags to see which one show the greatest amount | | | | chlorophyll, the leaf will die. |
| of decomposition. | | | | For the next experiment, you will need a |
| Another demonstration of the need for yeast to | | | | cardboard box, scissors, and a house plant. Cut |
| feed on other substances can be seen in this fun | | | | different holes in the box. Leave spots where no |
| experiment. This time you will need your dry | | | | sunshine can enter. Place the house plant in the |
| yeast, sugar, a small glass jar with a narrow neck, | | | | box and set it near the window. When the leaves |
| a balloon, a measuring spoon and a measuring cup. | | | | start growing toward the opening and the |
| You will also need two cups of warm water. | | | | sunshine, change the position of the plant and |
| Dissolve the yeast and the sugar in one cup of | | | | watch what happens. Plants are drawn to the sun. |
| the warm water. Pour the mixture into the glass | | | | This example is an excellent example of |
| bottle. Add the other cup of warm water. Make | | | | phototropism. |