Ques:If bouncing sound waves off the bottom of the ocean is used to find the location of an object, then doing what with sound waves off the bottom of the ocean is used to find the location of objects? Answer choices: - observe it - skipping them - Electrical energy - rolling them - focusing a lens - hopping them - bouncing them - reflecting light

Ans:bouncing them
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Ques:If food is preserved by drying, then how is food preserved? Answer choices: - liquid - moistness - hydration - bacteria - mold - heat - Cooking - drying

Ans:drying
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Ques:If balances indicate mass, then how is mass indicated? Answer choices: - movement - motion - layers of fat - forces - set number - energy - a balance - similar

Ans:a balance
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Ques:If heat falls from lower to higher altitudes, then the measurement of what falls from lower to higher altitudes? Answer choices: - snow - rain - Energy - heat - Inches - meters - H 2 O - motion

Ans:
heat
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