Evaporation is
When a liquid turns into a gas
What is one thing scientists should NEVER do in a lab?
Eat (unless instructed to)
The air that surrounds Earth
Atmosphere
Where can we find freshwater?
Lakes, Rivers & Wetlands
What is the scientific word for rain?
Precipitation
What is something all scientists do in order to have accurate results?
They retest !! They complete multiple tests over and over again
Water in the form of invisible gas
Water vapor
If you add up all of the fractional pieces of a pie chart.. What would it add up to?
1 whole or 100%
When a gas turns into a liquid
Condensation
When a scientist makes changes to a design in order for it to work.
i.e. When y'all made a second design for the marshmallow investigation
An iteration. or iterate
Matter that is only made of one molecule
Substance
What are the three types of changes in a chemical reaction?
Color, taste and temperature
How do clouds form?
Water from surfaces like the ocean evaporate and turn into water vapor. This water vapor collects in the sky to form clouds.
Important Rule: Matter and mass can not be ________ nor ___________
created, destroyed
Draw a picture of a gas, solid and liquid particles.
Solid should be tightly packed
Gas should be spaced out
Liquid should be sliding past each other
Mr. Taylor decides to boil a pot of water that weighs 6 grams. He has a lid on this pot so no gas escapes. After he boils the water he sees that some disappears.
Is the water destroyed?
How much does the new pot of water weigh now?
No, the water just changes forms. (changes into a gas)
The water weighs 6 grams.
What are the four steps in the water cycle?
1. Evaporation (the sun makes water hot then it turns into a gas)
2. Condensation (water vapor cools and turns into clouds)
3. Precipitation (rain)
4. Collection ( the water that collects in the ocean and fresh water places)
Things that engineers think about and test in order to know how well something solves a problem.
Easy definition: desired feature
we haven't talked about this term yet :(
Criteria
The criteria in the marshmallow experiment was stability. We needed a stable structure to solve the Earthquake problem.
A process in which substances can create a new substance
Chemical Reaction
Amira decides to freeze 3 cups of water in a closed container, after a week she defrosts it. How many cups of water are in the container now?
There are 3 cups of water in the container now. It doesn't change the weight.