OSE 7.1 Unit Assessment

OSE 7.1 Unit Assessment

Assessment

Flashcard

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7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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25 questions

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1.

FLASHCARD QUESTION

Front

What are molecules made of?

Back

Atoms

2.

FLASHCARD QUESTION

Front

What makes one substance different from another substance? A) Its color and shape, B) The type of atoms it contains, C) The number, type, and arrangement of atoms in its molecules, D) Its temperature

Back

The number, type, and arrangement of atoms in its molecules.

3.

FLASHCARD QUESTION

Front

In a chemical reaction, what happens to the atoms in the reactants?

Back

They are rearranged to form new substances.

4.

FLASHCARD QUESTION

Front

Which statement is true about substances? A) All substances are made of the same type of atoms, B) A substance can be made of different types of molecules, C) A substance is made of the same type of molecules or atoms, D) Substances do not contain atoms

Back

A substance is made of the same type of molecules or atoms.

5.

FLASHCARD QUESTION

Front

What do scientists use molecular models for?

Back

To understand chemical reactions.

6.

FLASHCARD QUESTION

Front

What did Dalton's investigations help to understand? A) Gravity, B) The structure of atoms and molecules, C) Plant growth, D) The solar system

Back

The structure of atoms and molecules

7.

FLASHCARD QUESTION

Front

Which of the following is a result of a chemical reaction? A) Melting of ice, B) Formation of a new substance, C) Breaking of glass, D) Dissolving sugar in water

Back

Formation of a new substance

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