allows some materials to pass into and out of the nucleus
What is nuclear membrane?
200
measure of force of gravity on an object
What is weight?
200
the way a surface feels - rough, smooth, slippery
What is surface texture?
200
each different type of organism, plant, animal or micro-organism
What is species?
200
an animal that hunts another living thing for food
What is a predator?
200
organelles that are made of special micro tubes.
What is centrioles?
300
the tool used to measure force
What is spring scale?
300
sloped surface
What is ramp?
300
network of interactions that link the living and non-living parts of an environment
What is ecosystem?
300
the organism that is being hunted
What is prey?
300
small molecules that are building blocks of proteins
What is amino acid?
400
the force of gravity is 6x less on this planet than on earth
What is the moon?
400
weight of the object you are trying to move
What is load?
400
the whole Earth is one large ecosystem
What is biosphere?
400
feeds, reproduces, and even excretes wastes. Lives in a moist, sugar-rich environment
What is yeast?
400
the process that divides the nuclear material
What is mitosis?
500
when doing an experiment it is important to do the same things each time
What is a fair test?
500
when the forces of an object are balanced
What is equilibrium?
500
Scientists have identified large areas of Earth that roughly have the same temperatures and the same amounts of rain or snow
What is biomes?
500
Any part of the non-living environment - physical barriers, sunlight, water, temperature, and soil - that determines whether or not an organism can survive