States of matter
What is matter?
Anything that has mass and takes up space.
What is a mixture?
Two or more materials combined together.
What does it mean when something dissolves?
It mixes evenly in water.
What is a physical change?
A change in how something looks or feels but not a new substance.
What is one sign of a chemical reaction?
Bubbling or fizzing.
Which state of matter takes the shape of its container but keeps the same amount?
Liquid.
DAILY DOUBLE!!!!
If sand and water are mixed together, can they be separated?
Yes.
Name one material that dissolves in water.
Sugar or salt.
Is tearing paper a physical or chemical change?
Physical change.
When baking soda and vinegar mix, what do we see?
Bubbles / gas.
Which state of matter spreads out and fills the space around it?
Gas.
What tool helped us separate the foam shapes from the water in our investigation?
A magnet.
Does sand dissolve in water?
No.
Is melting ice a physical or chemical change?
Physical change.
Why is baking a cake a chemical change?
A new substance is formed.
DAILY DOUBLE!!!!
Name two examples of solids.
Rock, pencil, desk, ice, etc.
Why did the oil and water separate in our investigation?
Oil and water do not mix.
DAILY DOUBLE!!!!
When sugar dissolves in water, does it disappear?
No, it is still there but mixed into the water.
DAILY DOUBLE!!!!
Name an example of a reversible change.
Melting ice, freezing water, ect.
Name two signs of a chemical reaction.
Bubbles, gas, heat, color change.
What are the three states of matter?
Solid, liquid, gas.
Name one way scientists can separate a mixture.
Using a magnet, letting materials settle, or using tools to separate them.
Is dissolving a physical change or a chemical change?
A physical change.
Name an example of an irreversible change.
Baking a cake, burning wood.
DAILY DOUBLE!!!!
What do scientists call it when a new substance forms?
A chemical reaction.