Chemistry 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Chemisrty | The science that deals with the materials of the universe and the changes these materials undergo.
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| Common name for chemistry | The central science
- because most things involve chemical reactions
- most careers involve chemistry
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| How many branches of chemistry are there? And what are they? | 6 branches
1. Organic
2. Inorganic
3. Physical
4. Analytical
5. Biochemistry
6. Analytical
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| Organic chemistry | Chemistry of carbon, hydrogen, and oxygen (chemistry of life)
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| Inorganic chemistry | Chemistry of compounds made from metals and non-metals
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| Physical chemistry | Chemistry in terms of lawn of physics
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| Analytical | Separating, identifying, and quantifying
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| Biochemistry | Chemistry of living things
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| Theoretical | Using mathematical models too predict the structure of compounds
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| Chemistry involves both ____ and ____ worlds | Microscopic, macroscopic
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| Measurement | An observation including a both number and a unit.
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| Scientific method | Process of investigation to solve problems.
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| How many steps are there in the scientific method? | 6
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| Steps of the scientific method | 1. State the problem
2. Make observations
3. Form a hypothesis
4. Test the hypothesis
5. Analyze data
6. Form your conclusion
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| What do you do if your conclusion supports your hypothesis? | Perform more experiments to continue testing your hypothesis.
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| What do you do if your conclusion does not support your hypothesis? | Form a new hypothesis.
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| Quantitative observations | Observations including numbers
ex. height, weight, density, etc.
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| Qualitative observations | Observations including qualities
ex. color, feel, scent, etc.
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| Bias | Expectations change how the results are viewed.
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| Theory | Explanation of why something happens in nature based on repeated observations.
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| Natural law | Statement about what happens in nature that seems to be true all the time (summary of our observations).
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| Do theories change? | Yes!
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| Do Laws change? | Yes!
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| Experiment | Method of collecting data to test a hypothesis.
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| How many experimental steps are there? | 5
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| Experimental steps | 1. State the problem/question (must include both variables)
2. Form a hypothesis
3. Perform the procedure
4. Analyze data
5. Form a conclusion (positive, negative, or inconclusive)
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| Hypothesis | Testable prediction based on an educated guess.
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| Matter | Anything that has mass and takes up space.
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| Atom | fundamental unit of which elements are made.
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| How many types of atoms are there? | 118 (elements)
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| Element | Only one type of atom. Can not be separated into simpler substances.
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| Allotrope | Same element with a different physical form.
ex. diamond, graphite, buckminsterfullerene (by the way that is my favorite word right now)
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| Compound | Atoms of different elements chemically combine to form a new substance.
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| Molecule | A collection of atoms together that act as a unit.
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| Physical proporty | Characteristic that can change without changing the substance.
ex. color, melting point, solubility, hardness, etc.
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| Chemical property | Characteristic of a substance that describes its ability to change into a different substance.
ex. flammability, toxicity, etc.
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| Physical change | Change that does not change the composition of the substance.
ex. cutting bread, melting ice, etc.
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| Chemical change | Change from one substance to another substance.
ex. burning wood, metal rusting, etc.
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Created by:
dkhorse
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