What antibiotic, useful for treating diseases, was originally found from a fungus?
Penicillin.
100
What happens when something evaporates?
It changes from a liquid phase to a gas phase.
100
Convection is the transfer of heat through which of the following?
A. electrons
B. contact
C. movement of heated materials
D. microwaves
C. movement of heated materials
100
The Earth moving around the sun is an example of ______ and the Earth turning around on its axis is an example of ______.
A. rotation, revolution
B. rotation, rotation
C. revolution, revolution
D. revolution, rotation
D. revolution, rotation
200
A cell's eyespot enables it do sense what?
Light.
200
Photosynthesis occurs in what organelle, commonly found in plant cells?
Chloroplasts.
200
Can an element be broken down into a simpler form?
No, an element cannot be broken down without losing the properties of the material.
200
The nucleus of an atom are composed of what two particles?
Protons and Neutrons.
200
Where are the mesosphere and thermosphere located?
It is a layer in the atmosphere, located above the stratosphere. The thermosphere is located above the mesosphere.
300
What do you call a cell that results from mitosis or meiosis?
A daughter cell.
300
An opposable thumb is an example of what evidence for evolution?
It is a type of structural adaptation.
300
Iron rusting is an example of what chemical process?
Oxidation.
300
What do you call two or more elements bonded together?
A compound.
300
Radio waves, microwaves, visible light, and x-rays are all examples of what?
Electromagnetic waves.
400
The transfer of material across a cell's semipermeable membrane is known as what?
Diffusion
(Osmosis is a type of diffusion in which only water is transferred.)
400
True or False - A mollusk's mantle is its primary form of locomotion.
False - It is a heavy fold of tissue that forms the hard outer layer.
400
The law of conservation of mass states that the mass you have at the beginning of a reaction is....
A. greater than the mass at the end of the reaction
B. the same as the mass at the end of the reaction
C. less than the mass at the end of the reaction
B. the same as the mass at the end of the reaction
400
Joules and calories are different measurements of what quantity?
Energy.
400
Two surfaces coming into contact creates what?
Friction.
500
If, when doing a Punnett square, BB represents a person with brown eyes and bb represents a person with blue eyes, what color eyes will their children have?
Brown.
500
Though you might wish they all disappeared, what simple organisms are used in creating various cheeses, pickles and sourdough bread, as well as help clean up chemicals such as an oil spill?
Bacteria.
500
A collection of experimental findings that relate scientific phenomena is known as what?
A theory.
500
How does an isotope differ from its corresponding element?
An isotope has a different number of neutrons.
500
If an object is increasing or decreasing in speed, what is it doing?