Carla Fry
2012-09-12 15:56:36 UTC
Here are the clues.
2.) There is a lot more to a good experiment than just test tubes and chemicals - consider how these "unknown" factors may influence the results.
6.) Working model to explain and predict the structure or properties of matter and nature, based on the results of repeated observations and experiments.
14.) Either an element or a compound - its composition cannot be varied by physical means. (2 words)
16.) Although this way of studying natural phenomena is often presented as a series of steps, it is actually a process, of discovery.
19.) This prediction should never be compared to a wild guess - it should be based on some prior observation, experience or logical reasoning.
quantity. (2 words)
22.) Characteristic of a substance, such as its solubility, conductivity, melting point, etc.. (2 words)
1.) In science, it's not really a rule so much as an accepted summary of observed properties or behavior in nature. (2 words)
3.) Describes how close a measured value is to an actual or known value.
4.) Substance with a variable composition that can be altered by simple physical means, such as by evaporating one of the components.
5.) Controlled test or procedure carried out to learn more about the physical or natural world.
7.) No report of an experiment is complete without an understanding of the sources of experimental _______, which may be random or systematic.
9.) Pure substance that can be broken down into simpler substances by a chemical reaction.
10.) Water _____ is a common method for determining the density of an irregularly shaped object or material.
12.) This law states that matter is neither created nor destroyed in a chemical reaction. (3 words)
18.) Ratio of mass to volume - a characteristic physical property of a substance.