Observing Matter
to gather information using our senses is to ....
Observe
What do we use to measure mass?
A scale
If water is changing from a liquid to a solid, will energy be increasing or decreasing?
decreasing
You have two mystery blocks. You are able to hit a nail into mystery block A but mystery block B causes the nail to bend. Which block is made of steel?
Block B because it is made of a harder material.
______ is a measure of how fast particles are moving
Temperature
What is the definition of a property?
A property is a characteristic that may help you identify or define an item
what is the definition of volume?
The amount of space something takes up.
What do the molecules in a gas look like?
Does a gas have more or less density than a liquid and solid?
Why do helium balloons float but balloons blown up by humans do not?
Helium is less dense than air
If I am observing something that has shine, which of the 5 senses am I using to observe it?
Sight/Vision
when we are measuring mass, what exactly are we measuring?
The amount of matter in an object.
What is it called when a liquid turns to gas
evaporation
shape
If I put a meatloaf into a bowl, why would it not take shape of the bowl?
Because the particles are in a fixed position because it is a solid.
the way something feels is a physical property called ...
texture
_______ has no defenate volume
A gas
The amount of matter in a substance is
mass
_____ is a property that allows materials to dissolve in water
Solubility
what temperature is the freezing point for water?
0 degrees celsius
Name 2 measurable properties we can use to describe matter.
Boiling point, melting point, freezing point, density, mass, or volume.
A green bowling ball is 13kg and a yellow bowling ball is 8kg. Which bowling ball has more mass?
These two states have no definate shape
solid and liquid
can a solution conduct electricity?
yes
The idea that everything is made of small particles is known as __________
The atomic theory