Science Stuff
Earth Science is the study of the _______.
Planet Earth
In science, we use our ______ to make observations.
Senses
We gather information about the world around us by making __________.
Observations
When working on lab experiments, we must practice lab _______.
Safety
The ability to float is called _________.
Buoyancy
A marble is more _____ than a ping ping ball, which is why it sinks.
Dense
Earth's surface is covered in approximately ___% land and ___% of water.
30%;70%
Most of the water on Earth is _____ water.
Salt
Name all of the senses we use to make observations.
1. Sight
2. Smell
3. Touch/Feel
4. Smell
5. Taste
The Earth is covered in mostly _____.
Water
Liquids mixed together will eventually separate out into layers based on their different _________.
Densities
Which is MORE dense? Corn syrup or dish soap?
Corn syrup is much more dense.
Explain why a massive cruise ship can float, but a popcorn kernel can't.
The ship is less dense. The kernel is more dense.
Only 3% of all of the water on Earth is _____ water.
Fresh
List these objects from LEAST dense to MOST dense:
Golf ball, marble, ping pong ball.
1. Ping pong ball
2. Golf Ball
3. Marble
In class yesterday, we made a container of different liquids of differing densities called a _____ ______.
Density Tower
A physical property that measures how closely packed together a substance's particles are is called _______.
Density
What percent of the fresh water on Earth is easily accessible for humans to drink?
Less than 1%
Most of Earth's freshwater is _______.
Frozen (in the glaciers)
There is very little freshwater available to drink on Earth. In order to make sure we have enough, we must ________ water.
Conserve/Water Conservation