8th Grade Science Midterm Review

Front

Why do scientists write reports about their investigations?

Back

To communicate their work to other scientists.

Front

What question can best be investigated by a scientist?

Back

Does a plant need sunlight to grow?

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Front

How is energy transported from the core to the surface of the sun by radiation?

Back

Light particles bounce towards the convective zone.

Tags

NGSS.HS-PS4-3

Front

How is energy transported from the core to the surface of the sun by convection?

Back

Hotter gases rise to the sun's surface, then cool and sink, creating a circular pattern.

Front

In an experiment, what is a dependent variable?

Back

The variable that depends on the independent variable; in the bean plant example, it is the height of the bean plant.

Front

Why is it important to perform multiple trials during an experiment?

Back

It ensures that the results are more accurate.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Tags

NGSS.MS-PS1-2

Front

What is a hypothesis?

Back

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

Tags

NGSS.MS-PS2-2

Front

What is the difference between independent and dependent variables?

Back

The independent variable is manipulated by the researcher, while the dependent variable is measured in response.

Front

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

Back

To provide a baseline for comparison against the experimental group.