LEAP 2025 Science Grade 4 Post Test

LEAP 2025 Science Grade 4 Post Test Sample

Standard: 4-PS4-1, 4-ESS2-2 DOK: 2 1 pt

The largest recorded tsunami wave struck Alaska in 1958. Its height was 1720 feet tall. The waves destroyed land and vegetation. What was the likely future impact on the land after the tsunami?

Read and study the sources about structure and processes of organisms. Then use the four sources and your knowledge of science to answer questions 6-10.

Source 1

Venus Flytraps

The Venus flytrap is an amazing plant. It developed unique external structures to capture prey. The plant mostly gets its nutrients from the gases in the air. However, the plant lures and traps insects. The "mouths" of the flytrap have soft hairs called cilia outside and inside. When a fly tickles the cilia, the leaves snap shut. Inside the leaf, digestive juices break down the soft parts of the fly. The hard parts of the fly are ejected from the leaf days later.

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

Marley tries to feed her Venus flytrap a dead fly. The leaves do not close over the fly. What can Marley do to make the flytrap’s leaves close?

Source 2

Standard: 4-ESS3-1 DOK: 3 1 pt

Lauren has solar panels installed on her house to save money on energy costs. Explain how cloudy and rainy days may affect the cost of electricity in the house.

Standard: 4-PS3-2 DOK: 2 1 pt

The table shows the thermal conductivities of four materials commonly found around us. The higher the number, the higher the thermal conductivity of the material.

Which of these materials heats most quickly on a hot day in the Sun?

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

Jason wants to model the predator-prey cycle. Which animals best model the cycle?