Succession
Chemical vs Physical Change
COUNTING ATOMS
Chemical Formulas
Chemical Formulas
Random
Forces
100
What starts Secondary Succession?
Starts with soil
100
A ________ change could change an object's state of matter, but not the substance
What is a physical change?
100
What are the steps of counting atoms on a chemical formula?
1. tell me the elements
2. subscript
3. parentheses
3. Coefficient
100
What is the energy source for a food web
Sun
100
How do you calculate force?
Force= mass x acceleration
200
What starts Primary Succession?
Bare Rock
200
A _______ change can change an object's internal makeup.
What is a chemical change?
200
How many Magnesium atoms are present?
Mg3(PO4)2
What is 3?
200
What does the Cell Theory state
All living things are made of cells
Cells are the smallest part of a living thing
All cells come from preexiting cells
200
A 1.12kg ball rolls forward with an acceleration of 1.11ms2. What is the net force on the ball?
1.24 N
300
What are the first organisms to come during each start of succession?
Pioneer Speices
300
What are the 2 types of evidence that can prove a chemical change has occurred?
Color Change
Gas released (bubbles)
Light
Temp change
Precpiate
300
How many atoms are present in total
2 H2O
What is 6?
300
Which law explains why a ball thrown in the air eventually falls back down
Newton's First Law
300
What is the force and what direction?
70 N to the left
400
Name 2 Events that can cause secondary succession
Floods
Human Abandonment
Wildfire
Deforestation
400
Is mixing two solutions and a solid form at the bottom. called a physical change or a chemical change?
Chemical change
percipate
400
How many atoms are present in this compound?
K2CrO4
What is 7?
400
How do the Respiratory system and the Circulatory system work together
The respiratory system allows you to breathe in oxygen, which travels in your bloodstream, and breathe out carbon dioxide, which also travels in your bloodstream.
400
A force of 20 N acts upon a 5 kg block. Calculate the acceleration of the object.
a=4 m/s2
500
Which type of succession takes the longest, and explain why.
Primary, because it has to start from bare rock. The ecosystem foundation needs plants and soil to start with, and the process needs the rocks to be broken down.
500
In a chemical change, the particles of a substance are broken apart, and the atoms are rearranged into new particles, forming a ______ ____________.
What is a new substance?
500
How many Pb (Lead) atoms are present?
Pb(NO3)2
What is 1?
500
Count the atoms in C₆H₁₂O₆
24 (6 carbon, 12 hydrogen, 6 oxygen)
500
Calculate the force and what direction
9 N to the right