8th Grade Mid Term Exam 2024

Front

What causes the seasons on Earth?

Back

The seasons are caused by Earth's tilt and revolution around the Sun.

Front

Where do all stars begin their life?

Back

All stars begin their life in a Nebula.

Front

What type of plate boundary occurs when two plates come together?

Back

This is called a Convergent Boundary.

Front

What does the H-R diagram show the relationship between?

Back

The H-R diagram shows the relationship between temperature and brightness of stars.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is the average speed of a boat that travels 600 meters in 40 seconds?

Back

The average speed is 15 m/s.

Front

What is a Nebula?

Back

A Nebula is a giant cloud of dust and gas in space, where stars are born.

Front

What is a Convergent Boundary?

Back

A Convergent Boundary is where two tectonic plates move towards each other.

Front

What is the significance of the H-R diagram in astronomy?

Back

The H-R diagram helps astronomers classify stars and understand their evolution.

Front

What is Earth's tilt?

Back

Earth's tilt is approximately 23.5 degrees from the vertical, affecting climate and seasons.