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TN Ready 7PS1.2 and 7PS1.4 Review Lesson

TN Ready 7PS1.2 and 7PS1.4 Review Lesson

Assessment

Presentation

Science

7th Grade

Practice Problem

Easy

NGSS
MS-PS1-5, MS-PS1-2, MS-PS1-1

+2

Standards-aligned

Created by

Elese Gleeton-Wilson

Used 2+ times

FREE Resource

10 Slides • 12 Questions

1

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2

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3

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4

Multiple Choice

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When two or more atoms come together, they form a what?

1

Another Atom

2

A Solid

3

An Element

4

A Molecule

5

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6

Open Ended

How can we tell if something is just mixed or if a chemical reaction happened?

7

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8

Multiple Choice

What are some examples of physical properties that can help identify substances?

1

Color and texture

2

Density

3

Solubility

4

All of the above

9

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10

Multiple Choice

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If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

1

Filter

2

Screen

3

Magnet

4

Evaporation

11

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12

Open Ended

What clues tell us that new substances were formed?

13

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14

Multiple Choice

What happens to atoms during a chemical reaction?

1

They are created and destroyed

2

They rearrange and form new bonds

3

They disappear completely

4

They remain unchanged

15

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16

Dropdown

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Examine the experiment shown, then fill in the blanks.



The experiment shows a ​
system.

The mass at the end of the experiment will be ​
the initial mass.

17

Multiple Choice

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How many grams of OXYGEN would be needed to show conservation of mass in the example below?

1

100 g

2

93 g

3

7 g

4

0 g

18

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19

Fill in the Blanks

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20

Multiple Choice

EXPERIMENT #3

REACTANT(S) ------> PRODUCT(S)

12 .2 g Magnesium + 8.0g Oxygen ------> _____Magnesium Oxide


Assuming that magnesium and oxygen will react completely with one another, predict the mass of magnesium oxide that will be produced. _________

1

12.2 g

2

8.0 g

3

20.2 g

4

4.2g

21

Multiple Choice

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EXPERIMENT #4

If the cap had been removed during the reaction (open system), would there still be 44g of Product in the jar?

1

No, some of the substance was lost out of the container as a gas

2

Yes, mass can't be destroyed

22

Multiple Choice

A scientist mixed 100 grams of salt into a 500 grams of water. How many grams of salt water did I make?

1

500g

2

400g

3

600g

4

700g

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