Physical/Chemical Change
When you rip a piece of paper
Physical Change
What are the three states of matter
solid, liquid, gas
Will the mass stay the same after it changes form? For example: from ice to water will the mass be the same
Yes it will stay the same!
What properties can be measured and observed
Physical Properties
What is matter?
Anything that takes up space and has mass
When you burn wood
Chemical Change
What are the particles like in a solid
Tightly packed together
If you measure the mass of a glass of water, then you freeze the glass of water, will the mass change?
No, it will stay the same
When an object can shine light back which property does it have?
Reflectivity
What is mass?
measures the amount of matter in an object
When you bake a cake
Chemical Change
What are the particles in a gas like?
very spread apart, easily move around
Will the mass stay the same after a chemical change?
Yes the mass will stay the same.
When an object can slightly bend, what property is that?
Flexibility
What is volume?
The amount of space an object takes up
Chemical Change creates a ___________ ____________
new substance
What kind of volume and shape does a liquid have?
Definite volume, no definite shape
Eggs = 5 grams
Flour = 20 grams
Sugar = 10 grams
Oil = 5 grams
What is the total mass of the cake when it is mixed and baked?
40 grams
When an object can dissolve into water, what property is that?
Solubility
What is the fourth state of matter?
Plasma
Name 3 ways to know a chemical change has occurred
Formation of gas bubbles, change in color, change in odor
What kind of volume and shape does gas have?
No definite volume, and no definite shape
What is the rule for the law of conservation of mass?
Matter cannot be created nor destroyed
When an object can feel something like temperature through it, what property is that?
Conductivity
What does adding or removing energy do to matter?
Changes the form