Test - LEAP 2025 Science Grade 8 Post Test

1 pt Standard: 8-MS-ESS2-1; 8-MS-ESS2-2; 8-MS-ESS2-3 DOK: 1

Part A

Select the correct model. Which cross section with arrows best shows the cycling of matter within the mantle beneath Australia?

1pt Standard: 8-MS-ESS2-1; 8-MS-ESS2-2; 8-MS-ESS2-3 DOK: 1

Select the correct answer from each drop down menu that best completes the explanation to the answer to Part A.

Part B

Thermal energy from the Earth’s core transfers to the mantle and rock in the mantle

1 pt

Part A Select the correct box that describes which characteristic is Necessary or Not Necessary for an organism to be considered "living"

Reset
	Necessary for Living Organisms	Not Necessary for Living Organisms
undergo geological processes
made of cells
survive in hydrothermal vents
adapt over time to the environment
reproduce
grow and change
show sensitivity
maintain homeostasis
metabolize

1 pt Standard: 8-MS-LS4-3 DOK: 1

11.

Part A The genes for Drosophila’s abdominal segments are Abd-A and Abd-B on the cluster BX-C as seen in the image.

What would most likely happen to the fly’s abdomen if an environmental change affected the genes?

The fly's abdomen would be unaffected.

A super fly would result creating a new species with a different abdomen.

The antennae of the fly would become longer.

A mutation would occur changing the appearance and function of the fly's abdomen.

1 pt Standard: 8-MS-ESS3-1, 8-MS-ESS3-2 DOK: 1

18.

Part A

Explain how water circulates in the Great Ocean Conveyor Belt. Include the following information:

• The factors affecting or driving this phenomenon

• Where the currents circulate or move

• How salt circulates in the oceans’ waters

• How warm and cold waters cycle through this event

1pt Standard: 8-MS-PS1-6 DOK: 1

38.

Part B

Select the correct answer from the dropdown menu to complete the sentence.

This chemical equation represents a(n)

reaction because it gives off heat as a product.

LEAP 2025 Science Grade 8 Post Test