What is Matter?
What are the 3 states of Matter?
Solid, Liquid & Gas
What is a Physical Property?
What is a chemical property?
How something reacts or forms something new
What is the variable that you change?
Independent Variable
Chemical Change
A new substance is formed
What is Matter?
Something that Takes up Space
Yes
What is a chemical change?
A new substance is formed
What is the variable you measure?
Dependent Variable
Particle
Small Units of Matter
Matter is made up of...
Tiny bits called Particles (atoms and molecules)
Is the flame of a candle an example of a physical change?
No
Is the melting of wax a chemical change?
No
What is the variables that stay the same?
Controlled Variable
Mass
Amount of matter in an object
What are the 2 properties of matter?
Physical and Chemical
What are the 3 physical properties of water?
Water vapor, water and ice
What are some examples of a chemical change we have gone over in class?
Burning, Rust, Baking
Why do you have control variables?
To ensure accuracy in experiments
Chemical Change
New substance is formed
Why do Properties of Matter... Matter?
To help identify it
What happens to the particles during a physical change?
They stay the same but rearrange
Which sign of a chemical change happens when vinegar and baking soda mix?
A gas is formed
In an experiment testing how temperature affects dissolving rate, this is the independent variable.
The temperature
Rust
New substance from Iron, Oxygen and Water