Across
- 4. materials that do not conduct heat.
- 6. mixture of gases
- 10. system that carries food and oxygen to all parts of our body.
- 11. transfer of heat from one object to another.
- 12. sticky and trap germs
- 14. point at which solid becomes a liquid.
- 15. the gas we need to breathe in
Down
- 1. good conductor of heat
- 2. the substance in which solute is dissolved
- 3. living things that lives on or in the body of another living things
- 5. our heart beats in a minute.
- 7. red liquid flows around the body.
- 8. substances react to form new substance.
- 9. mushrooms and yeast are examples of
- 13. blood vessels carries wastes from the body towards the heart