Vocab 1
What are the properties of a solid?
tightly packed particles,
definite shape and volume
what are signs of a chemical change?
change in color, smell, bubbling, etc.
What happens to the water when you boil it in a pot?
it evaporates and turns into a gas
What type of change is melting an ice cube?
physical change
What scientific tool can Mrs. Berry use to pick up paperclips off the floor?
magnet
What are the properties of a liquid?
takes the shape of its container, definite volume, particles spread out
True or False - mixtures do not change into a new material when mixed together
true
What happens when a solid dissolves in a liquid?
Particles in a solid mix (dissolve) into the liquid
What is evaporation?
The change of state from a liquid to a gas
How can you test the hardness of a material?
Scratch it, or bend it
What is solubility?
ability of a material to dissolve into another material
What happens in a chemical change?
The materials and properties change and cannot be reversed
What is condensation?
change of state from a gas to a liquid
What it is called when water vapor in the air cools so quickly that it freezes?
Frost
What is a physical change?
- toasting bread
- burning wood
- cutting paper
- digesting food
cutting paper
what are the properties of a gas?
Takes the shape of its container, very loosely spread out particles
what is mass?
How can you separate salt from salt water?
Evaporate the water and the salt will settle to the bottom of the container.
What is a measure of how resistant a material is to scratching, bending or denting?
hardness
What materials are good conductors?
-eraser
- paper
- paper clip
- cork
- nail
paper clip & nail
What is matter?
anything that has mass and takes up space
what makes a chemical change happen?
a chemical reaction
What property of matter is it when sugar dissolves in tea?
solubility
What is another name for "observable characteristics?"
Properties of Matter
What property of matter would allow you to see yourself in a mirror?
reflectivity