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science quiz this we
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| Question | Answer |
|---|---|
| all of the things around you are called | matter |
| if you keep cutting an object in half and half again u would eventually get down to an | atom |
| atoms r mostley | empty |
| the middle of the atom is the ______ it contains _____ an d______ | nuecleus, protons, nutrons |
| protons have a _____ charge | postive |
| nuetrons have a __ ____ or ______ charge | no charge , nuetrual |
| around the nucleus are the | electrons |
| everything tht u can touch and feel is mostely | empty space |
| how small is an atom ? | 1M fit on the head of a pin |
| ____ are the basic building blocks of matter | atoms |
| all matter is made of ___ and ________ | atoms, molecules |
| what is the formula of water | H2O |
| water is made of _ parts _______ and __ part ____ | 2 hydrogen 1 oxygen |
| whta makes an atom diffrent from each other | number of protons and eletons or atomic number |
| atoms are aranged in | groups |
| atoms can all be found on | periodic table |
| the ____ _______ is the number of protons in thre nucleus | atomic number |
| there are __ elements that occur naturally | 92 |
| NaCI is the compound for | salt |
| everything in the universe is either _____ orn______ | energy ,matter |
| _____, _____, and _____ are energy | heat light sound |
| THINGS are made of | matter |
| _______ is in every living thing | carbon |
| ______ chemistry is a branch of chemistry names after carbon | organic |