Random Matter
What are the three types of matter?
When mixing Vinegar and baking soda how do you know it is a chemical change?
a gas is produced. It creates a whole new substance.
When water and sugar are combined
physical or chemical change, how do you know?
Physical Change. I can evaporate the water out and be left with sugar. There was no new substance.
All Matter is made up of
Particles / Atoms
______________________Particles are packed tightly together however they are still moving very slowly. They hold the shape of their container.
Solid
_________ Change is done only to the physical properties of a substance and are often reversible.
Physical Change
Melting an ice cube
physical or chemical change, how do you know?
Physical.
There was not a new substance made. It can also be reversed. It just changed states.
_________Particles very loosely packed together. They take up the shape of their container but do not hold the shape.
Gas
Name 5 different physical properties
color, taste, magnetism, boiling point, density, solubility, hardness, conductivity.
_________ Change is when a new substance is made
Chemical Change
Rotting Bananas
physical or chemical change,how do you know?
Chemical
react with the oxygen in the air. When exposed to the air, these chemicals react in a process known as oxidation, turning the fruit brown.
_________________________Particles are packed together however allow flow. They also take up the shape of their container but do not hold the shape.
Liquid
How can we tell the difference between powder sugar, baking soda, and flour?
By testing their properties. One will have a chemical reaction with vinegar. One becomes pasty with water while one becomes more sticky.
Slicing Bread
physical or chemical change,how do you know?
Physical
There was not a new substance made. The physical look of the bread was altered.
True or False and why...
I can always see solids, liquids, and gas
answers may vary
False, we can't always see gas. I see the air but I feel it with the wind.
When matter is combined, whether or not a new substance is made or not, the _____________always stays the same.
weight
Regardless of the type of change that occurs, Chemical or physical, when heating, cooling, or combining substances, the total weight of matter is____________.
Conserved
Stayed the same
Metabolism / Digestion
physical or chemical change, how do you know?
is the chemical reactions in the body's cells that change food into energy.
Matter is never ____________ or ______________
Created or destroyed