States of Matter
What are the three most common states of matter?
solid, liquid, and gas
Which has more mass: a bowling ball or a basketball of the same size?
Bowling ball
What type of material is attracted to magnets?
SOME metals.
Define conductor.
A conductor is an object that passes the flow of thermal/electric energy.
What does it mean if a substance is soluble?
It can dissolve in a liquid.
In which state of matter do particles move the fastest?
Gas
Two blocks look exactly the same, but one feels heavier. What can you infer about the heavier one?
The heavier one has more mass.
True or False: A magnet will attract both iron and plastic.
False
Define insulator.
An insulator is an object that STOPS or PREVENTS the flow of thermal and electrical energy.
You stir sugar into water and it disappears. What happened?
Which state of matter has a determined shape and a determined volume?
Solid
What happens to the volume of a substance when you pour it into a different container?
A magnet sticks to a metal object. What can you infer about that object?
I can infer that it contains a magnetic metal like iron, nickel, or cobalt?
Metals are conductors.
Salt dissolves in water, but sand does not. What does this tell you about sand?
The sand is not soluble or has a low solubility rate.
Which state of matter has no determined shape and no determined volume?
Gas
If two objects are the same size but one sinks in water and the other floats, what must be different about them?
You find a metal object. How could you test if it's magnetic using only a magnet?
Why is the handle of a cooking pot usually made of plastic or wood?
They are insulators and don’t transfer heat easily.
Why doesn't oil dissolve in water, even when you stir it?
The oil is not soluble.
Why does a solid keep its shape while a liquid takes the shape of its container?
The particles in liquids can move around and flow around each other. Particles in solids are tightly packed together, so they cannot move.
Why can a large piece of wood float while a small piece of metal sinks?
The wood can be less dense than the metal and still be larger.
Name a metal that is magnetic and one that is not.
Magnetic: Iron, steel, cobalt, nickel
Non-magnetic: wood, plastic, rubber
A student builds a circuit with a metal spoon and a plastic spoon. Only one works. Which one, and why?
The metal spoon, because it conducts electricity
An example is salt, sugar, etc.