Lessons

Fossils typically don't form in ​ (a)   rock because ​ (b)  

• igneous

• sedimentary

• the magma would destroy any plant or animal

• the layers of sediment pile up

In the troposphere,

• temperature stays the same as altitude increases.

• temperature increases as altitude increases.

• temperature alternately increases and decreases as altitude increases.

• temperature decreases as altitude increases.

The Earth’s atmosphere consists of a combination of gases. Scientists believe that we are creating air pollution, which causes an increase in some gases, such as carbon dioxide. Such increases make it difficult for the atmosphere to stay in balance, and heat radiating from the Earth is being trapped. What term refers to the sun’s energy being trapped in our atmosphere?

• convection

• greenhouse effect

• transpiration

• cumulus clouds

At the earth's surface warm air expands and rises leaving behind an area of ___________; cold air is dense and sinks to the surface to create what is known as an area of _________________. Pick the correct terms to fill the blanks.

• high pressure

• Coriolis effect

• Greenhouse gases

• low pressure

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Directions: Select the correct graph. Which graph best represents the relationship between pressure and altitude (height) in the Earth's atmosphere?

• 
• 
• 
• 

Earth's atmosphere is composed of

• carbon dioxide, ozone, and magnesium.

• nitrogen, oxygen, and trace amounts of other gases.

• iron, oxygen, and silicon.

• water, liquid oxygen, and trace amounts of other liquids.

What do dust, smoke, salt, and
chemicals have in common?

• They are gases in air.

• They make up water vapor in air.

• They are particles in air.

• They are found only in pure air.

Which of these do plants need to
make food?

• argon

• carbon dioxide

• oxygen

• nitrogen

Tags

NGSS.MS-LS1-6

What is the primary reason that fossils are rarely found in igneous rock?

• Igneous rock forms from cooled lava or magma, which destroys organic material.

• Igneous rock is too porous to preserve fossils.

• Fossils dissolve in the minerals of igneous rock.

• Igneous rock forms too quickly for fossils to develop.

In the troposphere, what happens to the temperature as altitude increases?

• Temperature stays the same.

• Temperature increases.

• Temperature alternately increases and decreases.

• Temperature decreases.