Density in Water

Presentation

•

Science

•

6th Grade

•

Hard

Joseph Anderson

FREE Resource

6 Slides • 5 Questions

Let's Recap Some Basics...

Water Cycle

Effects of Temperature on Density

Poll

Which processes in the water cycle do you think are the most important when it comes to understanding weather? (You may select more than one answer)

Evaporation

Infiltration

Condensation

Precipitation

Runoff

We will be focusing on:

Evaporation
Condensation
Precipitation

Vocabulary Recap

Evaporation - liquid water heating up & becoming a gas form (water vapor)
Condensation - water vapor cooling & becoming liquid water droplets
Precipitation - any form of water that falls from the sky (solid or liquid)

Multiple Choice

What is density?

The amount of matter in an object

The amount of space an object takes up

The amount of matter in a specific volume (how tightly packed the molecules are)

Remember...

As temperature increases (gets warmer), molecules get more energy and move faster.

When they move faster, they can spread apart.

As molecules spread apart, they are not as tightly packed together, so they become less dense (the density decreases).

Less dense water or air RISES. More dense water or air SINKS.

Multiple Choice

During evaporation, is the water becoming more or less dense?

More dense

Less dense

The density stays the same

Multiple Choice

As we go higher up into Earth's atmosphere, is the temperature getting warmer, cooler, or staying the same?

Warmer

Cooler

Staying the same

The colder temperatures higher up in the atmosphere cause the water vapor to condense into tiny liquid water droplets.

This process is condensation.

Multiple Choice

During condensation, is the water becoming more or less dense?

More dense

Less dense

The density stays the same

Let's Recap Some Basics...

Water Cycle

Effects of Temperature on Density

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