Anything that has mass and takes up space
What is matter?
This is what matter is made of
What are smaller particles?
Cutting a piece of paper is an example of this type of change
What is a physical change?
A type of change that happens when two or more substances mix to form a new substance
What is a chemical change?
The name for the tiny particles of matter that are too small to see
What are atoms?
People can use these to describe and identify matter
What are properties?
How big particles are
What is too small to be seen?
During a physical or chemical change, this is conserved.
What is mass? (or matter, or weight)
What happens to the total mass of the matter in a chemical change
What is, it is conserved (saved, not lost, the same)
The three types of particles that make up an atom
What are protons, neutrons, and electrons?
The scientific word for a substance's ability to dissolve
What is solubility?
This is an example of something that is not made of matter.
What is (energy form like light/heat/sound, idea, thought, or feeling, the force of gravity, or a shadow)
These are three states of matter
What are solid, liquid, and gas?
This is an example of a chemical change
What is (burning, rusting, baking soda/vinegar, cooking, rotting)
What matter made of just one kind of atom is called
What is an element?
These are four properties of matter
What is (hardness, colour, odor, taste, texture, magnetism, conductivity, melting point, etc.)
Blowing up a balloon to show air exists, or using clay and toothpicks to show what molecules look like are examples of this type of scientific tool
What are models?
This is how you can describe a physical change
(Some properties might change, but the type of matter stays the same)
This is a sign that a chemical change has happened
What is (colour change, smell, glowing, new materials like bubbles, temperature change, precipitate)
A group of atoms that are chemically bonded or joined together
What is a molecule?
Summarize one of our experiments from this unit
(Describe what happened and one concept, vocabulary word, or skill used)
How does leaving salt water out to evaporate show that matter is made of particles too small to be seen?
(Invisible salt crystals join to become visible, Can't see water particles leaving as they evaporate, but we notice the difference in the water level)
This is how you can prove that matter is conserved during a physical or chemical change
What is measure the total mass before and after the change, and use a closed system?
This is the evidence of chemical change you see when a match burns
What is (light, smoke, change in temperature, colour change)
An example of a molecule found in the natural world
What is (water, oxygen gas, carbon dioxide, methane, salt, etc.)