Experimental Design
Weighty Matters
To Infinity and Beyond
In A Matter of Speaking
Can You See The Light?
100
The possible answer to a scientific question.
What is a hypothesis?
100
The law that states every object in the universe attracts every other object.
What is The Law of Universal Gravitation?
100
9.46 trillion years, a measure of distance.
What is a light year?
100
A substance that cannot be broken down into any other substances by chemical or physical means.
What is an element?
100
The process by which a cell captures energy in sunligt and uses it to make food.
What is photosynthesis?
200
The factor that is purposely changed to test a hypothesis.
What is the independent variable?
200
The amount of matter in an object.
What is mass?
200
A giant ball of gas, primarily hydrogen and helium, which undergoes nuclear fusion.
What is a star?
200
The basic particle from which all elements are made.
What is an atom?
200
An organisms that makes its own food; a producer.
What is an autotroph?
300
The factor that may change in response to the independent variable.
What is the dependent variable?
300
The measure of the force of gravity on an object.
What is weight?
300
An object that orbits a star, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit.
What is a planet?
300
A group of two or more atoms held together by chemical bonds.
What is a molecule?
300
The main pigment for photosynthesis.
What is chlorophyll?
400
A scientific experiment in which only one variable is changed at a time.
What is a controlled experiment?
400
The tendency of an object to resist a change in motion.
What is inertia?
400
A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity.
What is a galaxy?
400
A substance made of two or more elements that are chemically combined in a set ratio.
What is a compound?
400
The by-products of photosynthesis.
What are glucose and oxygen?
500
An error in the design of the experiment.
What is bias?
500
The relationship between gravity and distance.
What is the force of gravity decreases rapidly as distance increases.
500
The three major types of galaxies.
What are spiral, elliptical, and irregular galaxies.
500
A substance made of two or more substances that are together in the same place, but their atoms are not chemically bonded.
What is a mixture?
500
The cell organelle where light energy is captured and, with carbon dioxide and water, drives the reactions turned into glucose.
What is a chloroplast?
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