Describing Matter
Anything that has mass and takes up space
What is matter?
Give 2 examples of physical changes.
Answers may vary.
This is how much stuff is inside something.
What is mass?
Explain the difference between mass and weight.
What is that mass is the stuff that is inside things and weight is that stuff plus the force of gravity?
A change in matter that produces one or more new substances
What is a chemical change?
The amount of space that matter occupies. It can be calculated for rectangular solids, liquids, and irregular solids.
What is volume?
In these _________ individual substances/ingredients cannot be seen and cannot be easily separated into their own groups.
What is a homogeneous mixture?
Give 3 examples of elements.
What are Aluminum, Gold, and Oxygen?
Give 2 ways that mixtures can be separated.
What are magnetism, filtration, distillation, electrolysis, chromatography, and evaporation?
The temperature of THE SYSTEM increases during a _________ reaction?
What is exothermic?
Give 3 examples of compounds.
What are water, salt and carbon dioxide?
If you were given 3 sample objects and 3 beakers of water of 1.0g/ml, 1.5g/ml, and 2.0g/ml, describe how you would figure out which item was the most dense.
What is I would drop them in the beakers and see if they float of sank. Then, I would compare their densities with the others?
Bonus: Worth $600 points!!! Name 2 of the 4 ways we can identify that a chemical reaction has happened.
What are: 1) Change in pH, 2) change in temperature of the system, 3) bubble or gas production, and 4) new substances are created?
Kinetic, potential, chemical, electromagnetic, electrical, and thermal
What are the 6 forms of energy?
BONUS: Worth $700 points! If you are doing a burning splint test, and you see/hear a small explosion, what gas is detected?
What is Hydrogen?