Properties of Matter
Particles of Matter
Physical Changes
Chemical Changes
Intro to Chemistry
100

Anything that has mass and takes up space is known as what?

Matter

100

What is matter made up of?  

smaller particles

100

Cutting a piece of paper is an example of a ______ change.  

physical

100

When two or more different substances are mixed, a new substance may be formed. This is called a _______ change.  

chemical

100

The scientific study of what matter is made of and how it changes is known as what? 

chemistry  

200

People can use _______ to describe and identify matter.

properties

200

What is a characteristic of particles?  

They are too small to be seen.

200

During a physical change, the total ______ of matter is conserved.  

weight or mass

200

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

200

Matter is made up of particles too small to be seen. These are called what?  

atoms

300

Describe solubility.  

the ability of a substance to dissolve

300

What is an example of a particle that makes up matter?  

A sample answer is air.

Acceptable answers: water, air, gas

300

What are the three states of matter?  

solid, liquid, gas

300

What is an example of a chemical change?  

Acceptable answers may include: cooking or baking, rusting, burning paper, rotting a banana

300

Matter made up of a single type of atom is called a what?  

element

400

Name three properties of matter.  

Acceptable answers include: color, hardness, reflectivity, electrical conductivity, thermal conductivity, magnetism, and solubility.

400

Blowing up a balloon can be used as a _____ to show that particles exist.

 model

400

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

400

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.

400

All of the atoms of an element are what?  

identical

500

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.

500

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.

500

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

500

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.

500

Describe a molecule.  

Molecules form when atoms join together with other atoms.