Vocabulary
Anything that has mass and takes up space
Matter
How can you describe a materials physical properties? (Think about your senses)
Looks, feels, smells, or tastes
We know a chemical change occurred between vinegar and baking soda because...
Gas was released, bubbles formed, fizz occurred
How many variables are changed in an experiment?
One
Why is it important to never touch, taste, or smell an unknown substance?
It could be dangerous.
Any property of a substance that can be observed without changing the identity of the substance
Physical Property
Physical properties of matter are characteristics of matter that can be tested, measured, or...
Observed
Evidence of chemical change could include...
Color, the release or absorption of heat, flammability, reactivity, or change of physical state
The variables that are kept the same
Controlled variables
What are the three states of matter?
Solid, Liquid, and Gas
A property that is observed when a substance undergoes a chemical change
Chemical Property
How easily a material can be flattened
Malleability
How reactive something is to another substance
Reactivity
The variable in an experiment that is changed on purpose
Independent Variable
Is combining the materials in a glowstick a physical change or a chemical change?
Chemical Change
How matter interacts with a magnet?
Magnetism
How easily the substance dissolves in another substance
Solubility
How easily something can be ignited
Flammability
The variable in an experiment that is being observed or measured (the effect)
Dependent Variable
What two main ways do scientist observe matter?
physical properties and chemical properties
A physical property that allows electrical current to flow in a circle from a power source to the object it is powering.
Electrical Conductivity
The temperature at which matter boils, melts, or freezes
Phase Change Points
What metal reacts with oxygen to produce aluminum oxide?
Aluminum
What does CER stand for?
Claim, Evidence, and Reason
Electrical wires are often made out of this metal since it is a good conductor of electricity.
Copper