Front

What does redshift in galaxies indicate?

Back

Redshift indicates that galaxies are moving away from us.

Front

What factor in tropical oceans contributes to stronger hurricanes?

Back

Warm water.

Front

What is a chemical reaction?

Back

A change in matter when the molecules rearrange to make new molecules.

Front

What type of galaxy has spiral arms?

Back

Spiral galaxy.

Front

What is an example of a heterogeneous mixture?

Back

Salad.

Front

What is the definition of a galaxy?

Back

A galaxy is a massive system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form or appearance of a substance without changing its composition, while a chemical change results in the formation of new substances.

Front

What is the role of warm water in hurricane formation?

Back

Warm water provides the energy needed for hurricanes to strengthen.

Front

What is the definition of a spiral galaxy?

Back

A spiral galaxy is a type of galaxy characterized by its spiral structure, with arms that wind outward from the center.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniformly distributed and can be easily distinguished.