∆ 4. Cooling the boiling water caused the barrel to _______evvaporate_____________________.



∆ 5. ________________________ and temperature determine the shape of substances.



∆ 6. If your guess in an experiment is wrong, you should give up / test again.(highlight the correct answer)



∆ 7. The chemical reaction of vinegar and baking soda produced ______carbin__________________ dioxide.



∆ 8. ________________________ is the best way to learn about science.



∆ 9. Light waves _______________________ in water.


please help me