Science Unit Test Review Part 2

Science Unit Test Review Part 2

Assessment

Flashcard

Science

7th 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 is plasma?

Back

Plasma is one of the four fundamental states of matter, consisting of ionized gas with free-moving ions and electrons. Examples include stars and neon signs.

2.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. Example: Table Salt (NaCl).

3.

FLASHCARD QUESTION

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout. Example: Lemonade.

4.

FLASHCARD QUESTION

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the composition is not uniform throughout. Example: Salad.

5.

FLASHCARD QUESTION

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Example: Gold (Au).

6.

FLASHCARD QUESTION

Front

What state of matter is involved in a fluorescent lamp?

Back

The state of matter involved in a fluorescent lamp is plasma.

7.

FLASHCARD QUESTION

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed from two or more elements chemically bonded, while a mixture is a combination of two or more substances that retain their individual properties.

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