8th Grade Science PSSA Mixed Review

Front

What is a biotic factor in an ecosystem?

Back

A biotic factor is a living component of an ecosystem, such as plants, animals, and microorganisms.

Front

What is the primary use of a microscope?

Back

A microscope is primarily used to observe small objects that cannot be seen with the naked eye.

Front

What direction does the sun rise in?

Back

The sun rises in the east.

Front

What is a nonrenewable resource?

Back

A nonrenewable resource is a natural resource that cannot be replaced or regenerated within a human timescale, such as fossil fuels.

Front

What is the purpose of conducting an experiment?

Back

The purpose of conducting an experiment is to test a hypothesis.

Front

What is an example of a biotic factor in a desert biome?

Back

An example of a biotic factor in a desert biome is a cactus.

Front

What is an example of a nonrenewable source of energy?

Back

An example of a nonrenewable source of energy is gasoline.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is a hypothesis?

Back

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

Front

What is the difference between renewable and nonrenewable resources?

Back

Renewable resources can be replenished naturally over time, while nonrenewable resources are finite and cannot be replaced.