LEAP 2025 Science Grade 4 Pre Test

LEAP 2025 Science Grade 4 Pre Test Sample

Source 3

Beaver Dams

Beavers shape the Earth in many ways. First, beavers chew down trees. The limbs from the trees are carried to a body of water. The beavers also carry mud over to the dam. Once the dam is built, it causes a pond of water to form behind the dam. Water which normally flows to other areas is cut off by the dam. Beaver dams are both beneficial and harmful to the environment. They can control floods, create new ecosystems, and remove pesticides from water. However, the dams can block river flow and cause other areas to flood. The loss of trees in the area may cause erosion, too.

Standard: 4-ESS2-3 DOK: 3 1 pt

An area near a beaver dam experiences soil erosion. Explain why the soil erosion happened.

Source 1

Sue, the Dinosaur

Sue is the largest and most intact T-rex skeleton on Earth. Paleontologist Sue Hendrickson discovered the dinosaur in South Dakota. The dinosaur’s bones were covered by mud and water shortly after its death. This prevented the bones from being carried off by other creatures. The bones were also found in layers of soil.

Standard: 4-ESS1-1 DOK: 2 1 pt

Select three correct answers. A paleontologist in the future discovers an imprint of a jellyfish preserved in stone near the shore. Which statement best explains the type of fossil found?

Standard: 4-LS1-2 DOK: 2 1 pt

Elara looks at the fish swimming around in their tank. She starts playing music around the tank. The fish swim away from the side of the tank where the speaker is located. Elara wonders how they can hear sound without ears. What is the best explanation for the fish hearing the music?

Session 2

Use the task set to answer questions 20-23.

Standard: 4-ESS3-1 DOK: 2 1 pt

The wind turbines stop turning causing a loss in power. What happened to the energy?

Standard: 4-LS1-1 DOK: 2 1 pt

This map shows the route birds take when they are flying south. Which behavior are the birds demonstrating?