4th Grade Earth and Physical Science Review

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks, while erosion moves rocks from one place to another.

Front

What causes the Sun to appear to move across the sky?

Back

The Earth's rotation causes the Sun to appear to rise in the east and set in the west.

Front

What two measurements are needed to determine the speed of an object?

Back

Distance traveled and time traveled.

Front

What happens to the pitch of a guitar string when it is tightened?

Back

The pitch becomes higher because the string vibrates faster.

Front

Why does food in a refrigerator get warm if the door is left open?

Back

Heat energy transfers from the warm room to the cool refrigerator.

Front

What is weathering?

Back

Weathering is the process of breaking down rocks into smaller pieces.

Front

What is erosion?

Back

Erosion is the process of moving rocks and soil from one location to another.

Front

What is the role of the Sun in the water cycle?

Back

The Sun provides energy for evaporation, which is a key part of the water cycle.

Front

What is the definition of speed?

Back

Speed is the distance traveled divided by the time taken.

Front

What happens to sound when a string vibrates faster?

Back

The sound produced has a higher pitch.