Question 1

Which bells would make a sound if wire X was replaced with yarn?

Accepted Answer

None

Answer

A, B, C, D

Answer

C, D

Answer

A, B

Question 2

What best supports the answer to how the bells would sound with yarn?

Accepted Answer

Yarn is an electrical insulator, so none of the bells will sound

Answer

Yarn is an electrical conductor, so all of the bells will sound

Answer

Yarn is an electrical conductor, so none of the bells will sound

Answer

Yarn is an electrical insulator, so all of the bells will sound

Question 3

How will the path of light change as it travels through water?

Accepted Answer

The light will change directions as it passes from the air into the water.

Answer

The light will be absorbed into the water

Answer

The light bends around the glass

Answer

The light will scatter when it goes into the water

Question 4

How many bulbs would stay lit if the switch was opened?

Accepted Answer

0

Answer

3

Answer

2

Answer

1

Question 5

If Bulb 1 was removed, how many bulbs would stay lit?

Accepted Answer

2

Answer

0

Answer

3

Answer

1

Question 6

Which statement describes a biotic factor interacting with an abiotic factor in a prairie ecosystem?

Accepted Answer

A bee pollinates flowers as it eats nectar.

Answer

A gopher burrows into the soil creating tunnels for shelter and food storage

Answer

A groundhog eats grasses and dandelions

Answer

A hawk perches in the branches of an oak tree

Question 7

30 ml of lemon juice and 15 g of sugar are added to a 120 ml glass of water. The solution is heated, and the water is removed. How much sugar is left in the glass?

Accepted Answer

15 g

Answer

45 mL

Answer

0 g

Answer

165 mL

Question 8

A student is investigating the effect of changing the surface on the distance a car travels.

What is the independent variable in the investigation of the car travel distance?

Accepted Answer

Ramp Surface

Answer

Distance the car travels

Answer

Height of ramp

Answer

Launch Force

Question 9

A student is investigating the effect of changing the surface on the distance a car travels.

Part A

What is the independent variable in this investigation?
A. Height of ramp
B. Distance the car travels
C. Ramp Surface
D. Launch Force

Which answer best supports the answer to Part A?

Accepted Answer

The independent variable is what the scientist changes.

Answer

The independent variable is what is measured in an investigation.

Answer

The independent variable is what stays the same in an investigation.

Question 10

Which description shows an organism interacting with an abiotic factor in the aquarium?

Accepted Answer

The plants anchor their roots in the gravel.

Answer

The fish eat the leaves off the plants

Answer

The snails eat the waste from the fish

Answer

The fish breathe in oxygen given off by the plants

Question 11

In a food web, how would you describe an organism that converts the Sun’s energy to make its own food?

Accepted Answer

producer

Answer

decomposer

Answer

herbivore

Answer

consumer

Question 12

A student looks through a microscope that has lenses. What happens to the light that is reflected off the tiny organism for the student to see the magnified image?

Accepted Answer

The light is then refracted as it goes through the microscope lenses.

Answer

The light is absorbed by the microscope lenses.

Answer

The light is transmitted through the microscope lenses.

Answer

The light is reflected as it goes through the microscope lenses.

Question 13

The circuit has four light bulbs and three switches. If Switch 1 is closed, which light bulbs will glow?

Accepted Answer

Bulb 1 and Bulb 2

Answer

Bulb 4 and Bulb 3

Answer

Bulb 2 and Bulb 4

Answer

Bulb 3 and 4

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