What is photosynthesis?

when plants turn carbon dioxide and water into energy.

when water and oxygen is composed.

Increase in temperature of the reactants can do one of the following

Increase frequency of effective collision between the particles thus increasing the rate of reaction.

Allow less effective collision between the particles

Rate of chemical reaction means

concentration of reacting particles

combining reactants with products

Which of the following statements about the effect of increasing temperature on a chemical reaction is correct?

It increases the speed of the reaction.

It increases the yield of the product.

It provides an alternative pathway for the reaction to occur.

It causes the particles to increase in size.

As temperature increases, what happens to the reacting particles?

The particles gained kinetic energy and starts moving faster.

The particles become closer together.

There are more particles per unit volume.

The particles increase in size.

5. When materials combine to form a mixture, they

A. keep their original properties.

B. react to form a new substance with new properties.

C. combine in a specific ratio.

D. always change their physical state.

When the temperature of matter increases the particles...

speed up and move farther apart

slow down and move closer together

slow down and move farther apart

Chemistry (Master) Horvath

Quiz

•

Chemistry

•

6th - 8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-4, MS-PS1-1, MS-PS1-2

+10

Standards-aligned

James Horvath

Used 44+ times

FREE Resource

45 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is melting butter for popcorn a chemical or physical change?

chemical

physical

Tags

NGSS.MS-PS1-4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What kind of properties can only be observed when a substance changes into a different substance?

physical properties

chemical properties

liquid properties

real properties

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kim puts an ice cube in a beaker and it melts. This is a good example of:

a physical change.

a chemical change.

an experiment.

an analysis.

Tags

NGSS.MS-PS1-4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is an example of a Chemical change?

Ripped paper

boiled egg

cracked egg

sugar in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?

evaporation; chemical change

condensation; physical change

evaporation; physical change

condensation; chemical change

Tags

NGSS.MS-PS1-4

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Rotting fruit

Chemical

Physical

Tags

NGSS.MS-LS2-3

NGSS.MS-PS1-2

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Photosynthesis

Chemical

Physical

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

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Chemistry (Master) Horvath

45 questions

Is melting butter for popcorn a chemical or physical change?

What kind of properties can only be observed when a substance changes into a different substance?

Kim puts an ice cube in a beaker and it melts. This is a good example of:

What is an example of a Chemical change?

One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?

Rotting fruit

Photosynthesis

Turn on a lamp.

Frying an egg.

During a chemical reaction, for example when combining carbon and oxygen to create carbon dioxide, the mass always...

Create a free account and access millions of resources

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Popular Resources on Wayground

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