B.2 Lesson 2 Review

What is a zombie fire?

• A fire that burns for a week at a time.

• A fire that burns in a forest.

• A type of fire that burns up again in a few months.

• A fire that only burns in really cold environments.

What is the fuel for zombie fires in the Arctic?

• Peat

• Leaves

• Snow

• Coal

What is peat made of? (choose two correct answers)

• Long chains of sugar molecules made of mostly Carbon, Oxygen, and Hydrogen.

• Hundreds and thousands of years of dead plant matter accumulating together.

• Hundreds and thousands of years of dead animal matter accumulating together.

• Long chains of sugar molecules made of mostly Sodium, Calcium, and Phosphorus.

What is permafrost?

• A layer of snow that has become frozen and is at least 4 feet in height.

• A layer of ice that has never been melted before.

• A frozen peat deposit that has been frozen for at least 200 years.

•  A mix of rock, soil, ice, and peat on the surface of the Earth that remains frozen for at least two years in a row.

Tags

NGSS.MS-LS2-4

What has been happening to permafrost in the Arctic?

• Permafrost is melting due to increasing amounts of peat.

• Permafrost is melting due to global warming.

• Permafrost is increasing because of global cooling.

• Permafrost is increasing because of peat.

Tags

NGSS.HS-ESS2-2

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5

What effect does melting permafrost have on zombie fires?

• Melting permafrost causes a decrease in the number of zombie fires.

• Melting permafrost causes no change in the number of zombie fires.

• Melting permafrost causes an increase in the number of zombie fires.

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

In our investigation last lesson, which fuel sample burned for the longest?

• Peat

• Grass

• Leaves

• Paper

In our investigation, we noticed that the fuel samples lost mass when they were burned. Where did the matter go?

• The carbon atoms from the peat were destroyed.

• In the burning reaction, carbon from the peat became carbon in the smoke.

Tags

NGSS.MS-PS1-5

How can we know that smoke from burning fuels has CO2 in it?

• The BTB in our investigation changed color when it reacted with CO2.

• The BTB in our investigation did not change color when it reacted with CO2.

• The BTB in our investigation changed color when it reacted with peat.

Tags

NGSS.MS-PS1-2

Which stores the most energy?

• Coconut Coir - Burned for 10+ minutes

• Grass - Burned for 30 seconds

• Cotton Ball - Burned for 10 seconds

• Leaf - Burned for 2 minutes