Properties of Matter
Anything that has mass and takes up space is known as what?
Matter
What is matter made up of?
smaller particles
Cutting a piece of paper is an example of a ______ change.
physical
When two or more different substances are mixed, a new substance may be formed. This is called a _______ change.
chemical
The scientific study of what matter is made of and how it changes is known as what?
chemistry
People can use _______ to describe and identify matter.
properties
What is a characteristic of particles?
They are too small to be seen.
During a physical change, the total ______ of matter is conserved.
weight or mass
When a chemical change occurs, the total weight of matter does what?
Acceptable answers: stays the same/is conserved/no matter is gained or lost
Matter is made up of particles too small to be seen. These are called what?
atoms
Describe solubility.
the ability of a substance to dissolve
What is an example of a particle that makes up matter?
A sample answer is air.
Acceptable answers: water, air, gas
What are the three states of matter?
solid, liquid, gas
What is an example of a chemical change?
Acceptable answers may include: cooking or baking, rusting, burning paper, rotting a banana
Matter made up of a single type of atom is called a what?
element
Name three properties of matter.
Acceptable answers include: color, hardness, reflectivity, electrical conductivity, thermal conductivity, magnetism, and solubility.
Blowing up a balloon can be used as a _____ to show that particles exist.
model
In your own words, describe a physical change.
Sample answer: A type of matter can change physically while remaining the same type of matter.
Example: cutting wood or cutting an apple
How do you know when a chemical change has occurred?
Acceptable answers include: formation of gas, change in color, change in odor, change in temperature, emission of light, and formation of a precipitate.
All of the atoms of an element are what?
identical
Explain how evidence can be used to describe matter.
Students should describe how observations or quantitative measurements of physical properties of matter can be used as evidence to describe types of matter.
What is an example of evidence that can be used to explain that matter is made of particles too small to be seen?
Acceptable answers include: inflating a balloon, evaporating liquids, and dissolving a substance.
How can you prove that the total weight of matter is conserved during a physical change?
measure the matter before and after the change occurs
What kind of evidence of a chemical change would you expect to find when you burn a match?
Acceptable answers: either change in temperature or emission of light.
Describe a molecule.
Molecules form when atoms join together with other atoms.