Ecosystem cycles and changes

Which best explains why runoff is important?

• It returns water to other locations on Earth
• It increases the chance of flooding
• It makes evaporation occur faster
• It increases condensation

Tags

NGSS.MS-ESS2-4

Which of these is an example of precipitation?

• snow
• air
• clouds
• vapor

Tags

NGSS.MS-ESS2-4

Which is the opposite of condensation?

• runoff
• evaporation
• precipitation
• transpiration

Tags

NGSS.MS-ESS2-4

How animals get the nitrogen they need

• from the air they breathe
• from the water they drink
• from the food they eat
• from the Sun

Organisms that need nitrogen to survive

• only plants
• only animals
• only bacteria
• all living organisms

Tags

NGSS.MS-LS2-1

How nitrogen is "fixed" into useable form for plants

• only through action of bacteria
• only through lightning
• through action of bacteria & lightning
• through photosynthesis

Tags

NGSS.MS-LS2-3

A habitat is the place where an animal lives. Which animal's habitat is probably not in the desert?

• an insect
• lizard
• desert rat
• bear

How does a bird "change its environment" to meet its NEEDS?

• builds a nest
• flies around
• catches bugs
• looks for something to eat

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

6. A squirrel makes a change to its environment when it —

• climbs a tree
• digs a hole to bury an acorn
• collects acorns
• jumps from tree to tree

Tags

NGSS.MS-LS2-4

What do scientist call organisms that are not native to an ecosystem and cause harm to native organisms?

• native plants
• invaders
• invasive species
• natural species