Air mass
Water cycle
RAIN
Water shortage
Hard
100

the total of all the protons, neutrons, and electrons within an object. In other words,

How do I explain mass?

100

When the water droplets become too heavy for the cloud to hold, they fall to the earth as precipitation.

What causes water to fall as rain?

100

any liquid or frozen water that forms in the atmosphere and falls back to the earth.

What is precipitation 5th grade?

100

 dams and reservoirs, rainwater harvesting, aqueducts, desalination, water reuse, and water conservation.

What is the answer to water shortage?

100

Fifth grade math can get complex

Is 5th grade math easy?

200

arctic, tropical, polar and equatorial

What are the 4 types of air masses?

200

The water cycle, also known as the hydrologic cycle or the hydrological cycle,

What is cycling of water called?

200

cloud droplets or ice particles in clouds grow and combine to become so large that the updrafts (e.g. upward moving air) in the clouds can no longer support them, and they fall to the ground.

What causes rain to fall?

200

The UN, and other global organizations, have been warning us of water shortages by 2050 for years — if not decades.

Will we run out of water in 2050?

200

Bill gates 

Who passed math 55?

300
slowly pushed along by high-level winds









How does an air mass move?

300

when energy (heat) forces the bonds that hold water molecules together to break

What causes evaporation?

300

roughly spherical

What shape is a raindrop?

300

703 million people lack access to clean wate

Are water shortages common?

300






10–11 years old


How old is a 5th grader?

400

weather front

What is it called when air masses meet?

400

it is how water reaches plants, animals and us!

Why is water cycle important?

400

denses to form clouds and falls back to earth as rain and snow.

How does nature make rain?

400

By 2030, we may face a 40% global gap between water supply and demand.

Will there be water in 2030?

400

There is no grade of A+.

Does Harvard have a+?

500

don't mix. They push against each other along a line called a front. When a warm air mass meets a cold air mass, the

What happens when 2 air masses collide

500

Heating a liquid

What helps water evaporate faster?

500

Possibly from pre-Germanic *Hréǵ-no-, from Proto-Indo-European *Hreǵ- (“to flow”)

Why is rain called rain?

500

Shortages of drinking water and poor quality drinking water

Do droughts cause water shortages?

500

counting

What is the oldest math?