CA STAR State Science Test Practice/Review 5th grade, part 1

Question 1

Which instrument is best for taking a picture of the arrangements of atoms and molecules?

Accepted Answer

an electron microscope

Question 2

What is the waste that leaves the blood and travels through the lungs before leaving the body?

Accepted Answer

CO2

Question 3

Which of the following is a property of CO2 gas?

Accepted Answer

It is colorless.

Question 4

When electric current flows through the metal filament of a light bulb, it is converted to

Accepted Answer

heat and light energy.

Question 5

Which gas is forming in the test tube shown below?

Accepted Answer

oxygen

Question 6

Where does oxygen-rich blood go after leaving the lungs?

Accepted Answer

heart

Question 7

Which of the following animals might compete with the coyote in this food chain?

Accepted Answer

owl

Question 8

A metal spoon was left in a pot of boiling soup. I burned a finger by touching the spoon. Why?

Accepted Answer

The metal spoon conducted heat to my hand.

Question 9

Which of the following is broken down in the body to release energy?

Accepted Answer

sugar

Question 10

A scientist observes a pattern of molecules. What state of matter is the scientist observing?

Accepted Answer

solid

Question 11

The digestion process begins in which of the following?

Accepted Answer

mouth

Question 12

What do water, aluminum, redwood trees, and valley quail all have in common?

Accepted Answer

They are all made of atoms

Question 13

Sterling silver is a combination of silver and copper. What is another combination of metals?

Accepted Answer

brass

Question 14

Which of the following best explains how stems transport water to other parts of the plant?

Accepted Answer

through a system of tubes

Question 15

The diagram below shows a mixture.What equipment should be used to separate this mixture?

Accepted Answer

hotplate

Question 16

All living things contain which element?

Accepted Answer

carbon

Question 17

Plants and animals are made of organic compounds.What common elements are in organic compounds?

Accepted Answer

carbon, hydrogen, oxygen, nitrogen

Question 18

Which of the following organisms is a decomposer?

Accepted Answer

B

Question 19

Iron filings and bar magnets were placed on paper.Where is the magnetic field strongest?

Accepted Answer

4

Question 20

Which best describes the role of the esophagus in digestion?

Accepted Answer

It carries food from the mouth to the stomach.

Question 21

Which of the following is produced when sugar is digested in an animal cell?

Accepted Answer

carbon dioxide

Question 22

Which best describes a parallel circuit?

Accepted Answer

Electricity flows along more than one pathway.

Question 23

Which of the following gases do plants use in photosynthesis?

Accepted Answer

carbon dioxide

Question 24

What will happen when the glass rod is brought near the balloon?

Accepted Answer

The balloon will be attracted to the rod.

Question 25

The diagram below shows an electrical circuit. This circuit is a series circuit because

Accepted Answer

the same current flows through both light bulbs.

Question 26

Which action will result in a product with new chemical properties?

Accepted Answer

popping popcorn

Question 27

Which property of salt is important when making ice cream?

Accepted Answer

Salt lowers the freezing point of water.

Question 28

Which of the following converts electrical energy into motion?

Accepted Answer

electric fan

Question 29

Which of the following electromagnets would have the greatest magnetic field?

Accepted Answer

D

Question 30

Which of the following systems breaks food into nutrients that can be used by the body?

Accepted Answer

digestive

Question 31

Which of the following represents a chemical reaction?

Accepted Answer

a cake baking in an oven

Question 32

Which material will allow electricity to flow between the battery and the light bulb?

Accepted Answer

copper wire

Question 33

At which location is Earth’s magnetic field the strongest?

Accepted Answer

4

Question 34

In the food web diagram, which animal is classified as an omnivore?

Accepted Answer

black bear

Question 35

What is the correct order of food traveling through the digestive system after it is swallowed?

Accepted Answer

esophagus, stomach, small intestine, large intestine

Question 36

Which organ removes cell waste from the blood?

Accepted Answer

kidney

Question 37

Which of the following is shown below?

Accepted Answer

electromagnet

CA STAR State Science Test Practice/Review 5th grade, part 1

Questions 37

CA STAR State Science Test Practice/Review 5th grade, part 1

Questions 37