3rd Grade Science : Physical Science

Study concepts, example questions & explanations for 3rd Grade Science

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Example Questions

Example Question #1 : Physical Science

What causes a handle of a pot to be hot when a pot is heating on a stove? 

Possible Answers:

Transmission 

Conduction 

Energy 

Physical Properties 

Correct answer:

Conduction 

Explanation:

Let's look at the terms from our answer choices to help us answer this question:

Physical properties are things that can be observed; such as, texture, color, etc. 

Energy is the ability to do something. 

Transmission is when energy passes from one object to another.

Conduction is when heat is transferred from one object to another object. 

When a pot is heating on a stove, the pot is in direct contact with the heat source. The handle of the pot is in contact with the pot, and the heat can be transferred from the pot to the handle, which causes the handle to be hot. 

Example Question #2 : Physical Science

Select the property that is not a physical property. 

Possible Answers:

Texture 

Weight

All options are correct

Color 

Correct answer:

All options are correct

Explanation:

Physical properties are properties that can be obtained without permanently changing the original substance. By looking at something, we can see the color, feel the texture, and measure the weight without changing the substance; thus, all of the choices are correct. 

Example Question #1 : Physical Science

Select the property that is not a physical property. 

Possible Answers:

Freezing point 

Melting point 

Boiling point 

Heat of combustion 

Correct answer:

Heat of combustion 

Explanation:

Physical properties are properties that can be obtained without permanently changing the original substance. Without changing a substance permanently we can measure the boiling point, melting point, and freezing point. However, to determine heat of combustion you must premaritally change the substance.  

Example Question #2 : Physical Science

Fill in the blank. 

__________ is the frequency of sound that determines the highness or lowness of the sound. 

Possible Answers:

Pitch 

Both volume and pitch

Volume

Neither volume or pitch 

Correct answer:

Pitch 

Explanation:

To answer this question correctly, we need to determine the difference between volume and pitch:

Volume is a measure of how loud a sound is.

Pitch is the frequency of a sound that determines the highness or lowness of the sound.

Pitch is the correct answer. 

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