Quiz about Science Assessment Grade 4

Question 1

As a student, you want to test in order to see its exact chemical property of matter, What kind of test can you perform to determine its reaction to another material?

Accepted Answer

Mix two substances and take a look if it reacts with an acid.

Answer

Put it in a high temperature to see if it melts.

Answer

Measure its mass and length.

Answer

Check if the thing has density.

Question 2

A grade 4 student observes that a solid thing turns into a liquid when it is heated. What is the best answer that describes this phase change?

Accepted Answer

Melting

Answer

Evaporation

Answer

Condensation

Answer

Freezing

Question 3

How do you determine whether a change is chemical in nature?

Accepted Answer

New substances are formed

Answer

Change in mass

Answer

Change in size

Answer

Change in shape

Question 4

How do chemical properties differ from physical properties of matter?

Accepted Answer

Chemical properties are observed when a material changes its composition as a reaction to another material, while physical properties are easily observed without changing the composition of matter.

Answer

Chemical properties are easily observed without changing the composition of matter, while physical properties are observed when a material changes its composition as a reaction to another material.

Answer

Both chemical and physical properties can be easily observed without changing the composition of matter.

Answer

Both chemical and physical properties can be observed when a material changes its composition as a reaction to another material.

Question 5

You have a collection of plastic water bottles. What should you do in order to reuse it?

Accepted Answer

Use the plastic bottles again as a small water container.

Answer

Throw them away in a trash bin.

Answer

Recycle them in the appropriate bin.

Answer

Burn them right away.

Question 6

How would you prove the best situation that represents a chemical change?

Accepted Answer

Mix baking soda and vinegar to generate gas and foam.

Answer

Boiling of water.

Answer

Melting an ice cube into water.

Answer

Cut the pieces of paper.

Question 7

What could be combined in an order for an acid substance to make it neutral?

Accepted Answer

Base

Answer

Water

Answer

Salt

Answer

Vinegar.

Question 8

Can you explain the effect of not having proper waste disposal on the environment?

Accepted Answer

Pollution of natural bodies of water

Answer

Improved quality of the soil

Answer

Increased population of animals and plants

Answer

Enhanced quality of air

Question 9

How could you prove the exact scenario that a chemical change is taking place?

Accepted Answer

By cooking an egg.

Answer

By mixing oil and water.

Answer

By hearing a shattering glass.

Answer

Melting chocolate in a microwave.

Question 10

What evidence can you find that best represents a chemical property?

Accepted Answer

A material reacts to acids

Answer

Liquid boils at a certain temperature

Answer

Presence of color in a matter

Answer

An increase in the amount of matter

Question 11

What is the role of humans when it comes to waste management?

Accepted Answer

To lessen the amount of garbage and recycle it into a useful product.

Answer

To throw the trash in the sea.

Answer

To stick up all the trash outside the house.

Answer

To burn all the trash.

Science Assessment Grade 4

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