Changes that may be Useful or Harmful
Guide the snake to the correct answers without touching the edges of the game board.
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Topics of this game:
- Why freezing enables us to store and preserve foods?
- What is a bad effect of chemical change?
- Which shows beneficial changes of material to the environment?
- Which describe a harmful change?
- When is a chemical change useful?
- Making Clothes
- Fruit Pits
- Recycling and Reducing used materials
- Contamination of Food
- Sprouting of seeds
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