Ques:Q: By what kind of change can a chemical change be reversed? Read this paragraph and choose the correct option from the provided answers: Because chemical changes result in different substances, they often cannot be undone. Some chemical changes can be reversed, but only by other chemical changes. Choices: - another carbon change - another thermal change - another radioactive change - another chemical change A:

Ans:another chemical change
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Ques:Q: What does an ammeter measure the flow of? Read this paragraph and choose the correct option from the provided answers: When a contractor builds a new home, she uses a set of plans called blueprints that show her how to build the house. The blueprints include circuit diagrams. The diagrams show how the wiring and other electrical components are to be installed in order to supply current to appliances, lights, and other electric devices. You can see an example of a very simple circuit in the Figure below . Different parts of the circuit are represented by standard circuit symbols. An ammeter measures the flow of current through the circuit, and a voltmeter measures the voltage. A resistor is any device that converts some of the electricity to other forms of energy. For example, a resistor might be a light bulb or doorbell. Choices: - water under pressure - wind - magnetic fields - current through a circuit A:

Ans:current through a circuit
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Ques:Q: Hotspots can be used to tell the speed and direction that what object is moving? Read this paragraph and choose the correct option from the provided answers: Hotspots can be used to tell the speed and direction that a plate is moving. Choices: - electrons - crystals - glaciers - plates A:

Ans:plates
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Ques:Q: What do tadpoles change into? Read this paragraph and choose the correct option from the provided answers: Tadpoles go through many changes to become adult frogs. Choices: - reptiles - toads - mud puppies - adult frogs A:

Ans:
adult frogs
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