Science DBA Review

Science DBA Review

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What happens to the atoms in matter when temperature increases?

Back

The atoms in matter move faster and may change state (e.g., solid to liquid).

2.

FLASHCARD QUESTION

Front

What is a chemical formula?

Back

A representation using letters and numbers that shows the types and numbers of atoms in a substance.

3.

FLASHCARD QUESTION

Front

What does a graph of motion show?

Back

It visually represents the distance and direction of an object's movement over time.

4.

FLASHCARD QUESTION

Front

How do you determine the concentration of a solution?

Back

Concentration is determined by the amount of solute in a given volume of solvent.

5.

FLASHCARD QUESTION

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

6.

FLASHCARD QUESTION

Front

What is the state of matter?

Back

The distinct forms that different phases of matter take on, such as solid, liquid, and gas.

7.

FLASHCARD QUESTION

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the chemical composition of a substance, while chemical changes do.

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