You are presented with the quiz "Blowing air into what causes air to move inside it?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "blowing air into a whistle causes air to vibrate inside the whistle" and "when an object moves or vibrates, the air molecules around the object also vibrate". So, what's the best answer to the question?
OPTIONS:
- heat
- solid plastic
- solid glass
- solid rock
- whistle
- sound
- a chime
- waves
whistle
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You are presented with the quiz "A flashlight requires what to produce light?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "aflashlight requires a source of electricity to produce light" and "electric energy is stored in batteries". So, what's the best answer to the question?
OPTIONS:
- batteries
- sunlight
- buttons
- calcite
- coils
- adding heat
- heat energy
- plastic
batteries
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You are presented with the quiz "what breathes with the help of a diaphragm?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mammals breathe with the help of a diaphragm" and "all humans are mammals". So, what's the best answer to the question?
OPTIONS:
- plants
- bears
- babies
- insects
- humans
- animals
- goats
- oxygen
humans
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You are presented with the quiz "What can help prevent food from spoiling? " But you don't know the answer, so you turn to your teacher to ask for hints. He says that "bacteria cause food to spoil" and "bacteria resistant plastics inhibit the growth of bacteria and molds". So, what's the best answer to the question?
OPTIONS:
- Dehydration
- Plastics
- Metals.
- sweating
- Cellulose
- sugar
- Pesticides
- Papers
Plastics
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