In an animal cell, what holds the parts of the cell together and controls the movement of materials into and out of the cell?
Cell membrane
100
What is sediment?
Rock and soil carried by water.
100
What is friction?
A force between surfaces that resists the movement of one surface past the other.
100
What is the most widely eaten meat in the world?
Pork
100
How many laws of motion does Newton have?
3
200
What do plant cells have that animal cells do not?
Cell Wall.
200
What is groundwater?
Water in the ground near the earths surface.
200
What is an endothermic reaction?
A chemical reaction in which more energy is taken in than given off.
200
How much did the heaviest turkey weigh?
86 pounds
200
True or false Hawaii is moving towards Japan?
True. It is moving towards Japan at 10 cm per year. This is because they are on different tectonic plates.
300
What is a herbivore, carnivore, and an omnivore?
Herbivore- A consumer that eats only plants or other producers.
Carnivore- A consumer that eats only meat.
Omnivore- A consumer that eats both producers and consumers.
300
What is an index fossil?
A fossil of an organism that existed on Earth for a short time over a large geographic area.
300
What is a pH scale?
A set of numbers between 0 and 14 used to measure the strength of acids and bases.
300
True of false cows have both top and bottom teeth?
Cows are herbivores, so they have only bottom teeth.
300
True or false the Nile River flows north to south?
False
400
What is the part of the cell that controls activities of other cell parts?
Nucleus.
400
What is a system of billion stars, gasses and dust?
Galaxy
400
What is a newton?
In the metric system, the unit used to measure force or weight.
400
True or false mature turkeys have more than 3,500 feathers?
True
400
True or False the Sun is 300,000 times bigger than Earth?
True
500
What do you call ground that is permanently frozen?
Permafrost
500
What are the fossil fuels?
Coal, Oil, and natural gas.
500
What is relative motion?
The change of position of one object compared to the position of another.
500
True or false cows don't need to have a calf in order to produce milk?