The smallest particle a substance can be divided into and still be the same thing.
What is an atom?
100
This is the base unit of length in the metric system.
What is the meter?
100
These are the three phases of matter we've learned about...
What are solid, liquid and gas?
100
This is the amount of matter in a substance.
What is mass?
100
This is the process where particles of one substance spread out through another substance.
What is diffusion?
200
A structure made of multiple atoms bonded to each other
What is a molecule?
200
This is the base unit of mass in the metric system.
What is the gram?
200
This phase of matter has the most compact particles.
What is a solid?
200
This is the amount of space something takes up.
What is volume?
200
This is what particles of matter are always doing.
What is moving?
300
The center of an atom which contains most of the atomic mass.
What is the nucleus?
300
This is the base unit for volume in the metric system.
What is the liter (or milliliter)?
300
This phase of matter has definite volume, but not a definite shape.
What is a liquid?
300
How tightly packed particles in a substance are, or how much mass is in a certain volume.
What is density?
300
This is the reason engineers must build gaps into roads, buildings and bridges...
What is thermal expansion?
400
Though atoms are very small, most of an atom is actually e_______ s_______.
What is empty space?
400
Name one reason scientists (and most countries) prefer the Metric System.
What is it's simple (base 10), or it's easy to convert, or it's a universal language.
400
This phase of matter has particles with the most energy and takes up the most space.
What is a gas?
400
This is the formula for calculating density.
What is mass divided by volume?
400
Name at least one factor that can change the speed of diffusion.
What is temperature, movement/stirring, density of the substances involved, amount of substances...?
500
Our current model of the atom has changed a lot from past models. How long have we been developing our ideas about the atom? BONUS: Name one person who developed a model of the atom and what their model looked like.
What is hundreds of years!
500
If you had a board that was 175 cm long, how long would it be in meters?
What is 1.75 meters?
500
This is what happens to temperature AND volume as you go from a solid to a liquid to a gas.
What is they both increase?
500
You have an object with a mass of 30 g and a volume of 60 mL. What is its density and will it float in water?
What is 0.5 g/mL and Yes, it will float!
500
This is when diffusion stops (BONUS: use the fancy long word we learned in class!).
What is when the substances are evenly/equally spaced...or when it has reached EQUILIBRIUM?