18 Week Checkpoint Review: 6th Grade Science

18 Week Checkpoint Review: 6th Grade Science

Heat Transfer

• 3 types: Conduction, convection, and radiation

• Conduction: heat transfer by touch

• Convection: heat transfer in fluids (liquids and gases)

• Radiation: heat transfer through empty space

Multiple Choice

Feet touching hot sand

• conduction

• convection

• radiation

Multiple Choice

Macaroni boiling in a pot of water

• conduction

• convection

• radiation

Multiple Choice

Energy from the sun travels to the Earth's surface through??

• conduction

• convection

• radiation

Multiple Choice

Convection currents happen when hot air rises because it is less dense and then pushes cold air down because it is more dense. What property of air is this showing?

• number of protons

• density

• number of electrons

• pH level

Energy that helps with the movement of air in the atmosphere and water in the ocean comes from 2 things:

• convection

• radiation

Multiple Choice

From where does the energy that powers the movement of air in the atmosphere and water in the ocean come?

• convection and natural gas

• radiation and natural gas

• convection and radiation

• conduction and coal

Multiple Choice

Look at the diagram of Earth's energy budget, What percentage of Earth’s energy is reflected back into space? (Hint: need to do some math)

• 51%

• 6%

• 30%

• 15%

Multiple Choice

Look at the picture of the Earth's Energy Budget. What absorbs the most of the incoming solar radiation?

• Clouds and rising air

• Land and oceans

• Earth's atmosphere

• Earth's mountains

Multiple Choice

Look at the diagram. How much of the incoming solar energy is ABSORBED by land and oceans?

• 51%

• 3%

• 64%

• 20%

Sea Breezes

• Convection Currents are responsible for moving warm and cool air over land and sea during the day. Heres's how:

• During the day, warm air over the land rises and goes out to sea, pushing COOL AIR from SEA to land.

The Water Cycle

• The water cycle has no beginning or end. Water is not created. Water changes its physical form.

• Most of the evaporation in the water cycle comes from the oceans.

Multiple Choice

What is step 1 of the water cycle?

• condensation

• precipitation

• evaporation

• runoff

Multiple Choice

Look at this picture of the water cycle. At which number does most of the evaporation occur?

• 1

• 4

• 2

• 3

Multiple Choice

Where is water created in the water cycle?

• condensation

• It changes its state of matter(solid, liquid, gas).

• precipitation

• evaporation