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science 4833
| Question | Answer |
|---|---|
| Everything around you is made of _____ and _______. | energy ; matter |
| Matter is anything that has _______ and takes up ________. | mass; space |
| Energy can hold _______ together or break it apart. | matter |
| Matter is made of ______. | atoms |
| A nucleus contains _________ and ___________. | protons; neutrons |
| outside the nucleus are _______ which are involved in ___________. | electrons;chemical reactions |
| Elements are made up of only ________ kind of _______. | one; atom |
| elements cannot be __________ into a simpler form by ordinary chemical reactions. | broken down |
| elements are arranged in a chart called the __________ of elements. | periodic table |
| Compounds are made of two or more ______ in exact proportions. | elements |
| Compouds have different _________ from the elements they are made of. | properties |
| The smallest part of a moecular compound is a __________. | molecule |
| __________ have a group of atoms held together by the energy of chemical bonds. | Molecules |
| Molecules form when atoms share ______. | electrons |
| Ions are ___________ atoms, positive or negative. | electrically charged |
| Ions of __________ charges attract ofne another to form electically _____________ compounds. | opposite; neutral |
| A mixture is a combination of substances in which individual substances _______________ | keep their own properties |
| A solution is a mixture in which two or more substances are mixed _________. | evenly |
| A suspension forms when a liquid or gas has another substance evenly __________ throughout it. | spread |
| Organic compounds contain _________ and hydrogen and are usually associated with living things or things that once were alive. | carbon |
| ______________ supply energy for cell processes | Carbohydrates |
| __________ store and release large amounts of energy. | Lipids |
| _________ are the building blocks of many structures | proteins |
| ___________ are smaller molecules that make up proteins | Amino acids |
| _________ are proteins that regulate nearly all chemical reactions in cells | Enzymes |
| __________ store important caded information in cells | Nucleic acids |
| inorganic compounds usually are made from elements other than_____________. | Carbon |
| Living things are composed of more than ___ water and depend on it to survive. | 50% |
| All chemical reactions in living things take place in ___________. | water solutions |
| Most living things use water to _________ materials through their bodies. | Transport. |
Created by:
gracie4833
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