3rd Grade Final Exam Review Science

A student goes outside on a chilly morning and begins to feel cold. Which action would help the student warm up?

• Sit on a cold bench

• Wave their arms up and down quickly

• Drink a glass of ice water

• Stand in the shade of a building

Where are fossils most often discovered?

• Inside active volcanoes

• In layers of sedimentary rock

• Floating in lakes and rivers

• In the roots of living trees

A class is learning about different types of soil. They want to plant flowers and need soil that holds water and drains well. Look at the picture - Which soil would work the worst for growing flowers?

• Clay and silt

• Gravel and sand

• Topsoil and clay

• Silt and topsoil

The picture shows an area in Georgia with tall, tree-covered hills and cooler temperatures. What type of habitat is this?

• Wetlands

• 
  Mountains

• Piedmont

• Coastal Plain

Landfills are large areas where trash is buried. Which statement about landfills is NOT correct?

• Landfills can take up space where animals live.

• Landfills help reduce the amount of trash on Earth.

• Landfills can cause pollution that affects soil and water.

• Landfills give animals a clean place to find food and build homes.

During the winter, many animals hibernate. What is the main reason animals like bears hibernate in cold months?

• They want to explore new places while it’s quiet.

• They need to practice sleeping for long hours.

• It helps them save energy because food is hard to find.

• It’s too noisy outside, so they stay inside to rest.

Toby and Maya are talking about what to do with plastic grocery bags. Toby wants to throw them in the trash, but Maya says they should be reused or recycled. Which idea is better for the environment?

• Toby’s, because the bags will break down quickly in the trash.

• Maya’s, because reusing or recycling plastic bags keeps them out of nature.

• Toby’s, because throwing away plastic bags helps the trash company.

• Maya’s, because plastic bags are easy to throw into the ocean.

Some insects have wings that look like leaves. How does this help them survive in their environment?

• It helps them fly faster through the trees.

• It helps them blend in with the plants and avoid predators.

• It helps them collect sunlight to make their own food.

• It helps them find water on leaves.

A factory accidentally spills waste into a nearby lake. What is the most likely effect this will have on the animals that live in or near the lake?

• The animal population will increase because the lake water will be cooler.

• The animal population will stay the same because animals can drink any kind of water.

• The animal population will decrease because the water is unsafe to drink.

• The animal population will increase because the waste will feed the fish.

A student is studying different properties of rocks. She picks up a rock and notices that it sparkles when the light hits it. What property is the student observing?

• The rock’s size

• The rock’s weight

• The rock’s luster/shininess

• The rock’s temperature