Science Worksheet

A student made a rock cycle model. What causes igneous rocks to form?

• Pressure

• Weathering

• Melting

• Erosion

What best describes a sedimentary rock?

• Rock formed by the deposition and compression of small pieces of matter and debris in layers over time

• Rock formed by the chemical reaction and breakdown of other forms of rock in deep caves and caverns

• Rock formed by the cooling and solidification of magma or lava as a result of volcanic activity

• Rock that has been subjected to intense heat and pressure that causes it to modify from its original form.

What type of rock is made mostly from shells?

• Limestone

• Conglomerate

• Sandstone

• Quartzite

Which of these Earth layers is the thinnest?

• The inner core

• The crust

• The mantle

• The outer core

Which layer is thicker than the outer core?

• Mantle

• Crust

• Outer core

Using the Layers of the Earth model, which section shows the molten iron-nickel layer that surrounds the inner core?

• Section 4

• Section 2

• Section 3

• Section 1

The breaking down of all rocks is called —

• erosion

• earthquakes

• melting

• weathering

A student was exploring the playground at school. Which example is the best evidence that deposition had taken place?

• The school sign's edges had been worn down over time.

• On one side of the hill behind the softball field, the ground was partly washed away from the rainfall.

• When the student picked up a couple of rocks, he noticed they felt smooth.

• The student found sand at the bottom of the hill that was the same as the sand on the softball field at the top of the hill.

A teacher noticed that a lot of mud and dirt was washing into the parking lot of the school. She asked her students to think of possible solutions to help with this problem. Which idea is the best solution?

• Students could raise money to have a new playground built.

• The class could plant some small bushes in the path of running water and mud.

• The class could post a sign warning people of the messy area.

• Students could take turns standing out in the rain warning people to "Be careful".

Which fossil would be considered the oldest?

• 4 (bottom row) 
• 1 (top)
• 2 ( 2nd row)
• 3 (3rd row)