Matter Basics
What is matter?
Anything that has mass and takes up space
What is an example of a mixture? water, carbon dioxide,
Trail mix
Trail mix
What does concentrated mean?
More solute in a solution
How can you separate salt from saltwater?
Evaporation
Is melting ice a physical or chemical change?
Physical change
What are the three states of matter?
Solid liquid gas
What is the solute in saltwater?
Salt
How can you tell one drink is more concentrated than another?
Stronger taste and darker color
Which tool separates solids from liquids?
Filtering
Is a banana turning brown a physical or chemical change?
Chemical change
How are particles arranged in a gas?
Far apart and moving freely
What is the solvent in saltwater?
Water
What is a saturated solution?
A solution where no more solute can dissolve
What is the first step to separate pebbles from a mixture?
Screening
What is one sign of a chemical reaction?
Bubbles forming or gas produced
What does it mean to observe something?
Use your senses and tools to gather information
What makes a solution different from a mixture?
It is evenly mixed and looks the same throughout
What is a sign that a solution is saturated?
Undissolved solute remains
What is evaporation?
liquid turning into a gas
Why is dissolving sugar not a chemical change?
No new substance is formed
What happens to mass when materials are mixed?
It stays the same
Which dissolves best in water: sand sugar or rocks?
sugar
What can you do to dissolve more solute?
Add more water
Why does evaporation work to separate solutions?
The liquid leaves but the solid stays
What is the difference between physical and chemical change?
Chemical change forms a new substance physical does not