Test 2 Review 6th

Front

What is a physical change?

Back

A physical change is a change in shape, form, or appearance of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What is evolution in terms of species?

Back

Evolution is the process by which species change over time through adaptations to their environment.

Front

Why do certain beak shapes in birds evolve?

Back

Certain beak shapes help birds obtain different types of food, leading to the evolution of different species.

Front

What is an example of a new substance forming?

Back

Lighting a match is an example of a new substance forming due to a chemical reaction.

Front

What is natural selection?

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

How does color variation in rabbits relate to survival?

Back

Rabbits of colors that blend in with their environment are more likely to survive and reproduce.

Front

What is density?

Back

Density is the mass of an object divided by its volume, often expressed in g/mL.

Front

If an object has a density greater than water, what will it do when placed in water?

Back

It will sink.

Front

What is adaptation in biology?

Back

Adaptation is a trait that helps an organism survive and reproduce in its environment.