_____________ is the ability to do work. It makes things happen.

The diagram shows part of the water cycle. Which part of the diagram shows precipitation?

• W

• X

• Y

Which action is the BEST example of erosion?

• hot lava flowing across land

• a mountain forming

• moving water forming a canyon

Similar containers were filled with different types of soil. Holes were poked into the bottom of each container, and 300 milliliters of water were added. The water that dripped out was collected and measured. According to the table given, which type of soil retained water best?

• potting soil

• sandy soil

• clay

the air, water, soil, and everything around us everyday

• environment

• pollution

• deforestation

• crop rotation

What is the process by which plants make their own food using sunlight?

• Photosynthesis

• Respiration

• Transpiration

• Digestion

Which layer of the Earth is made up of tectonic plates?

• Crust

• Mantle

• Core

• Atmosphere

What is the term for a scientist who studies weather?

• Meteorologist

• Geologist

• Biologist

• Astronomer

Which gas is most abundant in the Earth's atmosphere?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Hydrogen

What is the main source of energy for the Earth's climate system?

• The Sun

• The Moon

• Volcanoes

• Ocean Currents