Home » Science Projects » Science Project on “Understanding Decomposition”, Project Experiment Topics on Environmental Science for Class 8, 9, 10 and 12 Students.

Science Project on “Understanding Decomposition”, Project Experiment Topics on Environmental Science for Class 8, 9, 10 and 12 Students.

Understanding Decomposition

Materials Required:

  1. Two chicken bones with scraps on them
  2. Colander
  3. Brick
  4. Clothespin
  5. Plastic sandwich bag
  6. Refrigerator freezer

Animals, big, small or tiny eat food and help break it down. After your family has eaten a chicken at dinner, take two similar leftover bones (such as drumsticks or thigh bones) that still have some chicken on them. Put one of the leftover bones in a plastic sandwich bag and store it in a freezer.

Put the other one on the ground outside your house. It should be at a place, where no one disturb it.

Cover the chicken bone by placing a colander upside down, on top of it. Place a heavy brick on top of the colander to keep cats and dogs away from it. After a few weeks, look at the chicken bone under the colander. Do not touch it. Use a clothespin to pin it down.

Compare it to the one that was kept in the freezer. Which one of them decomposed, broke down or rotted faster? Did you see any small animals (flies, ants etc.) eating the chicken bone that was left outside?

 Try decomposing other types of food like celery, potatoes, radishes and a piece of bread.

Put some of them in the freezer, some on the ground and bury the rest.

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