8.3

Which type of energy transfer requires direct contact or touch between the two objects?

• conduction

• convection

• radiation

• thermal tranformer

The main human activity that releases greenhouse gases is...

• using bottled water

• eating meat

• burning fossil fuels

• texting on cellphones

Tags

NGSS.MS-ESS3-5

Global warming is the term used to describe the RISING of the average temperature on Earth.

• True

• False

Tags

NGSS.MS-ESS3-5

Global Warming is MAINLY caused by...

• ...the Sun

• ...the Greenhouse Effect.

Tags

NGSS.MS-ESS3-5

The Greenhouse Effect happens when the HEAT cannot escape the Earth.

• True

• False

Tags

NGSS.MS-ESS3-5

Trees help the Earth because...

• ...they absorb huge amounts of Carbon Dioxide (CO2) from the air and release oxygen back into it.

• ...they absorb huge amounts of oxygen from the air and release Carbon Dioxide (CO2) back into it.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a greenhouse gas that comes from cars?

• oxygen

• carbon dioxide

• heat

• Exxon

Tags

NGSS.MS-ESS3-4

Why is solar energy considered renewable energy?

• It's cheaper than fossil fuels

• The sun's energy would not run out for billions of years
  

• Solar energy recharges batteries

• All of them

Tags

NGSS.MS-PS3-3

What is the pH level of a solution that is considered neutral?

• 7

• 8.3

• 6.5

• 9

Which of the following pH levels indicates a basic solution?

• 4.5

• 7

• 8.3

• 3