Quarter 1 Review Part 1

Front

What is the path of a light wave?

Back

Light waves travel straight away from the source.

Front

Which is the largest: star, universe, cluster, or galaxy?

Back

The universe is the largest.

Front

What gases are most stars made of?

Back

Most stars are made of Hydrogen and Helium.

Front

What is the term for repeating an experiment to see if the same results are obtained?

Back

Replication.

Front

What unit of measurement is used to calculate distance in our universe?

Back

Light years.

Front

What is a light year?

Back

A light year is the distance that light travels in one year.

Front

What is the main component of stars?

Back

Hydrogen is the main component of stars.

Front

What is the difference between a galaxy and a universe?

Back

A galaxy is a collection of stars, while the universe encompasses all galaxies.

Front

What is the significance of replication in scientific research?

Back

Replication helps verify the results of experiments.

Front

What is the smallest unit of the universe?

Back

A star is the smallest unit of the universe.