| A | B |
|---|
| observation | describes events and data. You organize your data into data, charts and graph. |
| materials | List of all supplies needed for the experiment |
| conclusion | states that your hypothesis was correct or incorrect. Explains why your results occurred |
| Hypothesis | an educated gueess. |
| procedure | step by step instructions for performing the experiment |
| problem | written clearly in the form of a statement |
| earthquake | the focus is the point where rock layers move |
| Ring of Fire | Most of the volcanoes and earthquakes |
| green leaf | physical property |
| milk souring | chemical change |
| fireworks exploding | Chemical change |
| gold melting | physical change |
| water evaporating | physical change |
| paper being cut | physical change |
| paper burning | chemical change |
| metal rusting | chemical change |
| ability of sodium to react with water | chemical property |
| salt dissolving in water | physical change |
| wood being carved | physical change |
| a pencil being sharpened | physical change |
| snow melting | physical change |
| candles burning | chemical change |
| bread baking | chemical change |
| coal's ability to burn | chemical property |
| white milk | physical property |
| green stone | physical property |
| red house | physical property |
| sugar dissolving in water | physical change |
| silver tarnishing | chemical change |
| green leak turning red | chemical change |
| soft pillow | physical property |
| matter is anything that has mass and takes up space | true |
| matter that contains only one kind of atom is a proton | false |
| in solids the molecules can move in all directions | false |
| the smell of an orange is an example of a chemical property | false |
| the way a substance reacts with other substances is a chemical property | true |
| people use physical & chemical properies to identify substance | true |
| all magnets have a north and a south pole. | true |
| the smoother the surface the greater the friction | false |
| an atom is mostly empty space | true |
| an electromagnet must have a source of electricity | true |
| Sir Isaac Pickle proposed the Three Laws of Motion | false |
| a physical change occurs when | only appearance changes |
| the atomic number of an element tells the total number of its | protons |
| freezing is a physical or chemical change | physical |
| the modern periodic table is arranged by | atomic number |
| What is the symbol of nickel | Ni |
| Radioactive isotopes can be used to | treat cancer |
| Elements that break apart naturally are | radioactive |
| h2o | water |
| a chemical change occurs when | a new substance is formed |
| solid | the state of matter in which atoms are held together the strongest |
| mendeleev | created the first periodic table |
| Epsom salts and soap is a | chemical change |
| What is used to treat cancer & date fossils | radioactive elements |
