8th Grade Sci. End of Matter Unit Review

8th Grade Sci. End of Matter Unit Review

8th Grade

25 Qs

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8th Grade Sci. End of Matter Unit Review

8th Grade Sci. End of Matter Unit Review

Assessment

Quiz

Science

8th Grade

Medium

NGSS
MS-PS1-5, MS-PS1-4, MS-PS1-1

+3

Standards-aligned

Created by

Glen Strella

Used 42+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

If you were looking at salad dressing, and you notice oil and vinegar have separated, and their are herbs SUSPENDED in the salad dressing, how would the model help you classify the substance?

If the oily layer can be physically removed from the vinegar, it must be a mixture. If the herbs can be physically removed, it must be a solution.

If the oily layer can be physically removed from the vinegar, it must be a pure substance. If the herbs can be physically removed, it must be a compound.

If the oily layer can be physically removed from the vinegar, it must be a mixture. If the herbs can be visibly seen in the midst of the dressing, it must be a suspension.

If the oily layer can be physically removed from the vinegar, it must be a pure substance. If the herbs can be physically removed, it must be elemental.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you had a sample of ocean water, what steps could you take to classify ocean water as a suspension, solution, element or compound?

Evaporate the water. If salt is left behind, the sample is a mixture that can be defined as a solution.

Let the sample settle. If the salt settles to the bottom, it is a mixture that is classified as a solution.

Observe the diffraction of light as it moved through the sample. If light does not scatter, it is a pure substance that is elemental.

Examine the pH of the sample. If the pH is exactly neutral, it is a pure substance that is a compound.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What material is a pure substance from these choices?

Alloy (mixture of two metals)

Compound

Mixture

Solution (Homogeneous Mixture)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When two or more substances combine, but each substance keeps its own properties and identity, (like a strawberry banana smoothie) what is this new substance classified as?

element

compound

mixture

homogeneous substance

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Compare the box on the left containing the reactants in a chemical reaction. 

Which box on the right, correctly represents the products according to the Law of Conservation of Mass?

A

B

C

D

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Law of Conservation of matter states that:

The mass of the reactants must equal the mass of the products

The mass of the reactants is less than the mass of the products

The mass of the products is always greater than the mass of the reactants

Matter and mass are lost when atoms combine

Tags

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

15g of salt is dissolved into 115g of water. What is the total mass of the solution?

20g

40g

100g

130g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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