Addition and Subtraction
1 + (-1)
0
Matter is....
Stuff! Anything that takes up space! Includes solids, liquids, and gases
What is the perimeter of a SQUARE with side lengths of 10 inches?
40 inches
What are the 4 main layers of the Earth?
Inner core, Outer core, Mantle, Crust
What is the horizontal and vertical axis of a coordinate plane called?
Horizontal is X axis
Vertical is Y axis
3 + (-8)
-5
Reactants are....
Products are...
Reactants are... materials present BEFORE a chemical reaction.
Products are... materials present AFTER a chemical reaction.
What is a "Right Triangle"?
A triangle with one right angle.
What are convection currents in the mantle?
Circular movement of material in the mantle caused by heat from the core.
What are 3 things that are true about a proportional relationship?
- there are 2 quantities
- the quantities are related to each other by a multiplier.
-when one quantity is zero, the other is zero
-9 + (-9)
-18
each CO2 molecule includes how many Carbon atoms and how many Oxygen atoms?
One Carbon, Two Oxygen
What do all 3 angles of a triangle add up to?
180 degrees
What is a herbivore? Carnivore? Omnivore?
An herbivore only eats plants, a carnivore eats meat, an omnivore eats both.
Describe the graph of a proportional relationship.
It is a straight line that goes through the origin (0,0).
-17 - 5
-22
What are 4 signs that a chemical reaction has occurred?
1- Temperature change
2- Color change
3- Production of gas
4- A new substance is created
What is the area of a Triangle with a base of 3 inches and a height of 4 inches?
6 square inches. (Base x height divided by 2)
A food chain shows one line of feeding relationships. A food web shows a bunch of overlapping food chains.
I drove 245 miles on 7 gallons of gas. How many miles did I go per gallon?
35 miles per gallon
100 - (-20)
120
What does the Law of Conservation of Matter say?
In a chemical reaction, atoms are never created or destroyed. The same number and type of atoms present BEFORE the reaction is the same as AFTER the reaction.
Use the formula for Area of a circle to find the Area of a circle with a radius of 4
3.14 x 4 x 4 = 50.24
What are the reactants and products in Photosynthesis?
Reactants: CO2, water, sunlight
Products: Glucose, oxygen
64 x 15 = 960