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Science Invest 1-2
Science Investigation test 1-2 (9/7/22)
| questions | answers |
|---|---|
| What are the steps to the Scientific Method | 1. Ask a question, 2. Observe (info), 3. Form a hypothesis (statement)-you can test, 4. Test hypothesis (do the guess) ex. take a poll/ fulfill guess, 5.Record Data (draw), 6. Analyze Data (check data, reading), 7. Form a conclusion (recap) |
| What was Investigation 1.1 called | Mystery Mixture |
| What did we do in Investigation 1.1 | tested different substances to see what was the closes to the mystery mixture the teacher made |
| How can we tell if a chemical reaction has occurred? (What will you see, hear, feel?) | color change odor temperature bubbles solid |
| How can we identify substances (3 ways) | 1. chemical name (sodium chloride) 2. common name (salt) 3. chemical formal (Na-Cl) |
| a type of matter defined by a unique particle (gold) | substance |
| the smallest piece of a substance that is still that substance | particle |
| element symbols ALWAYS begin with a _______ letter | capital |
| if there is a _______ letter, it will be lowercase | second |
| Citric Acid and Baking Soda was the ___________ _____________ | Mystery Mixture |
| numbers and kinds of atoms in a particle | chemical formal |
| chemists use to name elements in substances | chemical name |
| atoms from original form change into a new form / substance | chemical reaction |
| everyday name (of a substance) | common name |
| anything that has mass and takes up space | matter |
| There are only 90 naturally occurring elements on Earth, but there are millions of different substances. Explain how this is possible and give examples. | There are a lot of elements that combine and create different things. H,O,C show up a lot in things/ materials |
| important substance that can't be broken into easier substances by chemical or physical change | elements |
| characteristic that determines how it reacts to other substances | chemical properties |
| organization of elements based on chemical properties | Periodic Table of Elements |
| represents elements using (specific) letters | symbol |
| group of elements that stretch, bend, and conduct heat and electricity | metals |
| gas elements that doesn't react with other elements | noble gas |
| Mendeleev was a Russian ________ and __________ | teacher, chemists |
| who organized cards looking for a pattern | Mendeleev |
| How did Mendeleev make the periodic table | placed elements in order of increasing atomic mass |
| the rows are called | periodic |
| columns are called | groups |
| STUDY for test | vocab, Mend, substance example, periodic table, NOTEBOOK |
| the periodic table ______________ had helped scientists understand elements | Mendeleev |
| periodic table was ____________ by atomic mass | organized |
Created by:
keflabrown
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