Matter
What is Matter?
Anything that has mass and takes up space
What is a mixture?
Two or more substances physically combined.
Is cutting paper a physical or chemical change?
Physical change.
What are the three common states of matter?
Solid, liquid, and gas.
What two measurements can be used describe the amount of matter and the space it takes up?
What is Mass and Volume
What type of mixture looks the same throughout?
Homogeneous mixture.
Is rust forming on iron a physical or chemical change?
Chemical change.
Which state of matter has a definite shape and definite volume?
Solid.
What property describes and objects ability to be attracted to a magnet?
What is Magnetism
Trail mix is an example of what type of mixture?
Heterogeneous mixture.
What type of change creates one or more new substances?
Chemical change.
Which state has a definite volume but takes the shape of its container?
Liquid.
what physical property describes how well a material allows heat or electricity to pass through it?
What is conductivity?
Salt completely dissolved in water forms what type of mixture?
A solution/homogeneous mixture.
Ice melting into liquid water is what type of change? Explain why.
Physical change because the substance is still water; only its state changed.
In which state are particles spread far apart and moving freely?
Gas.
A student had two objects of the same size, but one has more mass. What does that tell you about the objects?
The objects contain different amounts of matter even though they have the same volume.
A student mixes sand and water. Is this homogeneous or heterogeneous? Explain.
Heterogeneous because the sand and water do not mix evenly throughout and the different parts can be distinguished.
A student mixes two substances and observes bubbles, a temperature change, and a new substance. What type of change probably occurred?
A chemical change probably occurred because the observations provide evidence that a new substance formed.
Compare the arrangement and movement of particles in solids, liquids, and gases.
In a solid, particles are closely packed and mainly vibrate in place; in a liquid, particles stay close but can move past one another; in a gas, particles are much farther apart and move freely.