Modeling Matter
Anything that has mass and volume.
What is matter?
How is matter sorted?
By it's properties.
Describes how easily a material will dissolve in water.
What is solubility?
A change in size, shape, or state of matter but does NOT create a new substance.
What is a Physical Change?
All matter is made out of this. Particles which are too small to be seen.
What are atoms?
The amount of matter in an object.
What is mass?
What are three examples of properties?
Color, magnetism, hardness, shape, texture, mass
Dissolves easily and quickly in water.
What is high solubility?
A change that occurs to matter and a new substance is created.
What is a chemical change?
Is mixing baking soda and vinegar a chemical or physical reaction? How do you know?
It is a chemical reaction. Bubbles were released and the temperature changed by itself.
The amount of space that an object takes up.
What is volume?
Allow electricity to flow through them.
What are conductors?
Partly dissolves but not quickly or easily.
What is Low Solubility?
Melting butter
What is an example of a physical change?
Is mixing Iodine and cornstarch a chemical or physical reaction? How do you know?
Chemical. The color changed from brown and white to purple.
What are the three types of matter?
Liquid, solids, and gases.
How light reflects off of the surface of substances.
What is Reflectivity?
Does NOT dissolve at all in water.
High Solubility
A penny turning green.
What is an example of a chemical change?
What are the three ways to know a chemical reaction has occurred?
Gas bubbles, Color Change, Temperature Change
Identify all the items that ARE matter.
Salt, Oxygen, Light, Fire, A Rock, water, milk, sound.
Salt, Oxygen, A Rock, Water, Milk
Metallic, Dull, Glassy
What are the three types of reflectivity?
By appearance, because the other properties are the same.
Why is mixing sugar into water an example of a physical change?
Mixing sugar into water is an example of physical change because it does not create a new substance.
If you add food coloring to water, is this an example of a chemical change? Why?
No. A chemical reaction occurs when there is a new substance created. One sign of a chemical reaction is a change in color but NOT WHEN ADDED BY DYE.