DCA #2 Review

Front

Why is electrical wiring usually made from copper?

Back

Because copper conducts electricity.

Front

What causes the shadows to change length throughout the day?

Back

Earth's Rotation.

Front

What is the sixth planet known for its rings made of ice particles?

Back

Saturn.

Front

Why do things look bigger when looking through a magnifying glass?

Back

Refraction changes the image.

Front

Where does the sun appear to rise and set?

Back

Rise in the east, set in the west.

Front

What is the main reason copper is used in electrical wiring?

Back

Copper is an excellent conductor of electricity.

Front

What is the effect of Earth's rotation on shadows?

Back

Shadows change length and direction as the Earth rotates.

Front

What are Saturn's rings primarily made of?

Back

Ice particles.

Front

What is refraction?

Back

The bending of light as it passes through different mediums.

Front

What is the significance of Earth's axis?

Back

It is tilted, which affects seasons and the apparent movement of the sun.