ACROSS
1) Means of finding information involving being skeptical
3) Means of finding information involving common sense.
4) 3rd or 4th generation star
6) Bottom-up logic
8) A method in which the researcher manipulates a independent variable and observes a change in the dependent one.
9) A type of critical thinking.
11) Means of finding information involving solid evidence
13) Something written about a primary source
14) A descriptive method were varibales aren't directly manipulated.
15) Top-down logic.
DOWN
1) The other type of critical thinking
2) Explosion of most of the material in a star.
5) A genetic variation in the DNA
7) A original document. Raw or first hand information.
10) Scientist that believed the universe was static.
12) A type of evolution that causes from a different species of common ancestor.
By: Mahmoud Shehab El-Din