8th Grade SSA Review

Front

What does the fossil record indicate about the history of life on Earth?

Back

The fossil record shows part of the history of life on Earth and can tell scientists about environmental changes over time.

Front

What do fossils of palm fronds found in Antarctica indicate about the past climate?

Back

Palm fronds indicate a tropical climate was once present.

Front

What is the conclusion a farmer can draw from an experiment with different soils and fertilizers?

Back

It is NOT possible to conclude from this experiment which soil is best for growing his corn or which fertilizer is best for growing his corn.

Front

What does part of the cell theory state about cells?

Back

Cells come from other cells.

Front

How do cells of all organisms relate to the cell theory?

Back

The cells of all organisms divide to make more cells.

Front

What is the best way to determine if temperature affects goldfish behavior?

Back

Conduct an experiment with controlled variables.

Front

What causes sea breezes and land breezes along Florida’s coasts?

Back

Convection currents of rising, less-dense warm air and falling, denser cool air caused by differences in how quickly water and land absorb or lose the Sun’s heat.

Front

What is an example of a controlled experiment?

Back

An experiment where only one variable is changed at a time while all others are kept constant.

Front

What is the definition of a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between variables.

Front

What is the role of a control group in an experiment?

Back

The control group serves as a standard for comparison against the experimental group.