click below
click below
Normal Size Small Size show me how
Phys Sci Ch2
5th Grade
| Question | Answer |
|---|---|
| when matter changes to look different but does not become a new type of matter. Crushing a can changes its size and shape but it is still made of aluminum. | Physical change |
| permanent change in matter that forms a new substance with different properties. Oxygen reacts with metal to make the chemical change of rust. | Chemical change |
| changing from the liquid to the state of gas | Evaporation |
| The physical change of matter from a gaseous state to a liquid state. | Condensation |
| temperature at which matter changes from a liquid to a solid | Freezing point |
| temperature at which matter changes from a solid to a liquid | Melting point |
| temperature at which matter changes from a liquid to a gas | Boiling point |
| The 3 states of matter are: | solid, liquid & gas |
| At what temperature does water freeze? | 0 degrees Celcius or 32 degrees Fahrenheit |
| What are the types of chemical changes? | Burning, souring, rusting, cooking |
| What are the types of physical changes? | Tearing, crushing, freezing, melting, boiling, evaporation, condensation |
| What is the Statue of Liberty covered in? | Copper which does not rust but formed a blue-green coating |
| Why is rolling a ball of clay a physical change? | Because it is still clay. It’s just a different size or shape. |
| How does the state of matter change during evaporation? | The matter changes from a liquid to a gas. |
| How does the state of matter change during condensation? | The matter changes from a gas to a liquid. |
| What is formed during a chemical change? | A new substance with different properties. |
| What can change during a physical change? | The matter's size, shape, color, texture, weight, mass, temperature |
| Can water evaporate without an increase in temperature? | Yes but at a slower rate, like if you spill water on the floor… |
| Why can you see condensation but not evaporation? | When water evaporates it goes from liquid to vapor. Vapor is invisible. During condensation the vapor turns to liquid which you can see. |
| What are the stages of the water cycle? | Evaporation, condensation & precipitation |
| When ice melts, is that a chemical change? Why or why not? | No, it is still water and its properties are still the same. |