Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Exam
Science
| Question | Answer |
|---|---|
| The use of knowledge to solve practical problems | Technology |
| Natural Science contains: | Physical Science, Earth & Space Science, and Life Science |
| Meter | Length |
| Mass | Kilogram |
| Temperature | Kevin |
| Standard unit of measurement all scientists use | SI Units |
| Singular compound | Element |
| Two or more elements joined together chemically | Compound |
| Elements joined together, but not chemically | Mixture |
| Homogeneous mixture (dissolving sugar in water) | Solution |
| Heterogenous mixture [layers] (sand and water) | Suspension |
| Particles of something suspended (fog) | Colloid |
| Example of a bad conductor of heat | Wood |
| Example of a good conductor of heat | Metal |
| List physical properties | 1.Viscosity 2.Conductivity 3.Malleability 4.Hardness 5.Melting point 6.Boiling point 7.density |
| Able to bend and not shatter | Malleable |
| How to recognize a chemical change: | Color change, production of gas, and formation of a precipitate |
| Definite shape and volume | Solid |
| Indefinite shape and volume | Gas |
| Indefinite shape and definite volume | Liquid |
| Pressure increases and volume decreases | Boyce's Law |
| Liquid to gas | Vaporization |
| Gas to liquid | Condensation |
| Solid to gas (skips liquid) | Sublimation |
| Example of sublimation | Dry ice |
| Read safety stuff: page 11 | Book |
| Electron: located | Outside |
| Neutron: located | Nucleus |
| Proton: located | Nucleus |
| Electron: relative mass | 1/1836 |
| Neutron: relative mass | 1 |
| Proton: relative mass | 1 |
| Where is most of the mass located in an atom? | The nucleus. |
| The number of protons is the... | Atomic number |
| the sum of the number of protons and neutrons in the nucleus of that atom | mass number |
| How did Mendeleev order his periodic table? | By mass |
| How is today's periodic table ordered? | By atomic number |
| An electron that is in the highest occupied energy level of an atom. | Valence electron |
| Elements in a ___ have the same amount of valence electrons | Group |
| Most reactive elements: | Alkali Metals (Group 1A) |
| A group that are all gases at room temperature | Noble Gases (Group 8A) |
| An element with more or less neutrons than the regular element | Isotope |
| Model: Tiny, solid sphere Discovered: evidence for atoms; compounds have a fixed composition | Dalton |
| Model: triangle with air (hot and wet), fire (hot and dry), earth (dry and cold), and water (cold and wet). Discovered: All matter consisted of extremely small particles that couldn't be divided (atoms) and each element had its own kind of atom. | Democritus |
| Model: Nucleus with paths of moving electrons moving randomly in the space around the nucleus Discovered: the nucleus and all of an atom's positive charge is concentrated in its nucleus | Rutherford |
| Model: neg. charges are evenly scattered throughout an atom filled with a positively charged mass of matter. Represent by plum pudding or mint chocolate chip ice cream Discovery: first evidence that atoms are made of even smaller particles | Thomson |
Created by:
rachelebrady
Popular Physical Science sets