Terms
The amount of matter in an object
What is mass?
When a liquid changes to a gas
What is boiling point or vaporization point?
The most typical units to measure mass of a pencil
What are grams (g)?
All matter is made of these
What are particles?
Sugar is dissolved into water
What is a physical change?
The study of matter
What is chemistry?
Has a fixed shape and volume
What is a solid?
The amount of milliliters in a liter
What is 1000?
In a liquid, the particles can be described to do this
What is move around and past each other, but still stay close together?
Bicycle wheel looks reddish brown in patches after being left outside in rain
What is a chemical change?
Describing matter using numerical data
What is a quantitative property?
When matter changes from a liquid to a solid
What is the freezing point?
Formula for calculating density
What is mass divided by volume equals density?
This type of matter has the greatest amount of empty spaces between the particles
What is a gas?
You light a candle
What is a chemical change?
The amount of space object takes up
What is volume?
In our class dry ice experiments, we learned dry ice changes directly from a solid to a gas, skipping liquid state, and is called this
What is sublimation?
The method for finding the volume of an irregularly shaped solid
What is the displacement method?
Particles at a higher (______) are moving faster than those at a lower (_______)
What is temperature?
Dry ice sublimates directly to a gas
What is a physical change?
A scientific description of many different features of matter; all matter is made of particles too small to be seen; all particles are in constant motion
What is the particle model of matter?
Freezing point occurs at the same temperature as this other change of state
What is melting point?
Which has greater density, one liter of gold or one liter of feathers, and why?
What is gold? (same volume, but much greater mass)
Each ____________ has its own kind of particles
What is pure substance?
Food gets chewed and then swallowed and digested
What is both chemical and physical changes?