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Physical Science Benchmark Review

Physical Science Benchmark Review

Assessment

Flashcard

Science

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What are radioactive isotopes?

Back

Radioactive isotopes have very unstable nuclei.

2.

FLASHCARD QUESTION

Front

How does a carbon-14 atom differ from a carbon-12 atom?

Back

Carbon-14 has more neutrons than carbon-12.

3.

FLASHCARD QUESTION

Front

What conclusion can be drawn from an experiment where sugar dissolves in water at various temperatures?

Back

The greater the temperature of the water, the quicker the solute will dissolve.

4.

FLASHCARD QUESTION

Front

How does a chlorine atom become a negatively charged ion?

Back

A chlorine atom becomes a negatively charged ion by gaining an electron.

5.

FLASHCARD QUESTION

Front

What is the formula for a compound containing only lithium (Li) and oxygen (O)?

Back

The formula is Li2O.

6.

FLASHCARD QUESTION

Front

What is the definition of an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

7.

FLASHCARD QUESTION

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

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