Chemistry
How many Carbon atoms are on the reactant side of the equation?
6CO2 + 6H2O -------> C6H12O6 +6O2
How many Oxygen atoms are on the Product side of the equation?
Reactants have 6 Carbon atoms
Products have 18 Oxygen atoms
All food webs begin with a ____________.
The arrows in a food chain or web represent what?
Producer
They show what direction the energy is flowing between organisms.
What type of cells have a nucleus?
Eukaryotic
What type of energy is associated with movement and the release of heat?
Kinetic/Mechanical energy
Pressure is what we __________.
Fronts is what we ____________.
See
Feel
Name two properties of metals?
Name two properties of nonmetals?
How can you determine the metalloids on a periodic table?
Metals = shiny, ductile, malleable, good conductors
Nonmetals = dull, brittle, insulators ( poor conductors)
Metalloids= Found on the zig zag line. Hopscotch 2-2-2-1-1
What is the difference between primary and secondary succession?
Primary succession - no ecosystem existed before (rock)
Secondary succession - an ecosystem that has been disturbed (soil)
What two systems are blood flow and breathing part of?
Circulatory system - Blood flow
Respiratory system - Breathing
What does Newton's 2nd law state? Hint: it contains a formula.
The force acting on an object is directly proportional to its mass and acceleration.
Formula: F=ma
What is the process of Convection?
Warm air/water rises. Cold air/water sinks.
Evaporation, condensation, and dissolving are examples of what type of change?
Physical changes
All of the following are examples of environmental changes that can be caused by humans except -
Clearing land for housing developments, Pesticides, volcanic eruption, Invasive species
volcanic eruption
What three organelles do plants and animals share in common?
1. Nucleus
2. Cell membrane
3. Cytoplasm
What is the difference between a balanced and unbalanced force?
Balanced forces result in no change in an object's motion, while unbalanced forces cause a change in motion
Why does Earth experience seasons?
Earth's tilt and revolution
Mg3(SO4)2
In the formula how many (S) Sulfur atoms are there?
How many total atoms are in the formula?
How many elements?
(S) Sulfur =2
13 total atoms Mg=3 S=2 O=8
Mg, S, O 3 atoms in the formula
Competition becomes more important as the number of individuals ______ or the availability of resources _________.
Increases, Decreases
1. Which organelle produces the energy of a cell?
2. In what organelle does photosynthesis?
1. Mitochondria
2. Chloroplast
What is the formula for speed?
If a train travels 270km in 180 minutes. What is the average speed PER HOUR?
Speed= distance/time
90 km/h
What is the difference between a Spring and Neap Tide?
90 degree angle (perpendicular) for a Neap Tide. 180 degrees (straight) for a Spring Tide.
Spring Tide= Strongest high and Strongest low
Neap= Moderate high and low
How many grams of H2O are missing in the equation?
CCl2 + H2O -------> CH + O + Cl2
36g + _?_ -------> 25g + 10g + 20g
19g of H2O is missing to make the law of conservation of mass true.
If the producers create 5000 calories, how many calories will be found at the secondary consumers?
50
List the function of each body system:
1. Digestive system
2. Endocrine system
3. Immune system
1. Breakdown of food and absorb nutrients
2. Release hormones Ex. Testosterone and Estrogen
3. Protect/fight off against diseases. Ex. antibiotics.
What's the formula for:
1. Force = ?
2. Mass = ?
3. Acceleration = ?
1. F= ma
2. m= f/a
3. a = f/m
What are the stages of a Star?
What stage is our star in?
Nebula, Protostar, Main Sequence, Giants, White/Black Dwarfs
Main sequence