Properties of Matter
Elise puts a cork in water. It floats. Why?
The cork is less dense than water.
What is the process of a solid changing into a liquid when heat is applied called?
Melting
The amount of matter in something.
Mass
Rebeca wants to make a snack for school. She mixes pretzels, goldfish, M&M's, and Takis in a bag. What kind of creation did she make?
A mixture (because the parts can be easily separated).
What is a pure substance made up of only one kind of atom called?
Element
Daniel wants to build a lightning rod. He has yarn, a glass rod, some PVC pipe, and copper wire. What is the best material to use to build it with?
The copper wire (it is the only conductor).
What are the freezing and boiling points in Fahrenheit? Daily Double if you can name both F and C.
Boiling 100C, 212F
Freezing 0C, 32F
FREE 200
FREE 200
What can I use to separate mixtures?
Options: my hands, a fork, tweezers, etc.
What type of matter is measured in grams?
Mass
Anna pours sugar in water and stirs it and watches the sugar disappear. What property of matter is she observing?
Solubility
What is the process of liquid changing into a solid when you remove heat from the liquid.
Freezing
What is an object that doesn't easily allow thermal energy or electrical energy to flow through?
Daily Double if you can give an example.
Insulator
Plastic, Rubber, etc.
What is a combination of two or more substances in which each keeps its own properties and both can easily be separated?
Mixture
What are the two poles of a magnet called?
Positive and negative
(Or North and South)
What are the three states of matter (aka physical states).
Solid, Liquid, Gas
Daily Double!
What is the process called when liquid takes up more space?
Expansion
What is the result when two or more types of matter interact to form a new type of matter?
Daily Double if you can remember the example I gave in class.
Chemical Change
Example: Rust
What is a process we can use to separate solutions?
Evaporation
What is measured in liters, milliliters, a cubic centimeters?
Volume
What are the 4 materials that can be attracted to a magnet?
SINC
Steel
Iron
Nickel
Cobalt
FREE 500!
What is the state of matter where the molecules move quickly and spread easily?
Gas
Olivia mixed sugar, lemon juice, and water. She stirred it together until she had a nice yellow liquid. What did she create?
A solution
What is a change that occurs when matter changes form (shape, size) but no new type of matter is formed?
Physical Change