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Question 1

What is the primary cause of the hypoxic zone in the Gulf of Mexico, near the mouth of the Mississippi River

Answer 1

High amounts of nitrogen and phosphorus from farming

Question 2

How does the moon’s Gravitational force compare to the Earth’s

Answer 2

The Moon’s gravity is about one-sixth as strong as Earth

Question 3

Respiration is a common exothermic reaction. What happens to the atom of oxygen found in the reactants

Answer 3

They form water and carbon dioxide molecules

Question 4

What is velocity

Answer 4

IT is a speed in a certain direction, so a change in velocity means either a change in direction, or a change in speed.

Question 5

What is the formula for speed

Answer 5

Speed= Distance elapsed÷time

Question 6

What is the formula for acceleration

Answer 6

Acceleration= final velocity-initial velocity÷time
or
Net force÷mass

Question 7

When you push a shopping cart, the friction that is opposing the motion is called_______ friction

Answer 7

Rolling friction

Question 8

What is the formula for work

Answer 8

Work= force x distance

Question 9

What is the formula for power

Answer 9

Power- Work÷time

Question 10

What is a first classed lever

Answer 10

The load is on one side of the fulcrum, and the effort is on the other side,

Question 11

What is a second class lever

Answer 11

The fulcrum is on one side, the load is in the middle, and the effort is on the other side, like a wheelbarrow

Question 12

What is a third class lever

Answer 12

The fulcrum is to one side, the effort is in the middle, and the load is one the other side.

Question 13

What is the difference between a simple machine and a compound machine

Answer 13

A simple machine is a machine that does work in a single motion, while a compound machine combines a number of simple machines to produce a more complicated machine, like a can opener.

Question 14

What are Erythrocytes

Answer 14

They are red blood cells, they carry hemoglobin, which is a protein that carries oxygen around in our bodies. It is the most abundant cell in our body, and it is made in bone marrow.

Question 15

What are Leukocyte

Answer 15

Leukocytes are white blood cells, which help the immune system fight pathogens

Question 16

What are Thrombocytes

Answer 16

They are platelets and they are the clotting factor in the plasma of the blood. Which happens through a process called coagulation.

Question 17

What is the plasma of blood

Answer 17

It is the yellowish part of blood that contains electrolytes, hormones, clotting factors called platelets, protein, vitamins, ect.

Question 18

What is the largest terrestrial biome on earth

Answer 18

Taiga

Question 19

The negative in a circuit always goes to the……..

Answer 19

……Positive, not the other way around

Question 20

What do the golgi bodies do in a cell

Answer 20

They package, sort, and distribute proteins and other products from the ER, and send them where they need to go.Wh

Question 21

What is diffusion

Answer 21

It is the movement of molecules from an area of high to low concentration. Basically if things are highly concentrated, they would want to be less concentrated. Cells always wanted to find the Equilibrium, like how you breathe. It works both ways

Question 22

What is Osmosis

Answer 22

Osmosis, is where water molecules move through a semi-permeable membrane to balance out density on both sides.