Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
6th U3.3 Science
Unit 3 Lesson 3 Physical and Chemical Changes
| Question | Answer |
|---|---|
| A ___ property of matter is any property taht can be observed or measured without changing the chemical identity of the substance. | Physical |
| A __ is a change that affects one or more physical properties of a substance. | Physical Change |
| ___Changes occur when a substance changes from one form to another, but the chemical identity of the substance remains the same. | Physical |
| The appearance, ___ or size of a substance may be altered during a physical change. | Shape |
| Stretching a rubber band is an example of a ___. | Physical change |
| Dissolving sugar in water is an example of a ___. | Physical change |
| Cutting your hair is an example of a physical change. True or False | True |
| A ___ occurs when one or more substances change into entirely new substances with different properties., | Chemical change |
| True or False: Chemical changes are not exactly the same as chemical properties. | True |
| Chemical changes are the __ by which substances actually change into new substances. | Process |
| Chemical changes involve changes in the arrangements of particles and are often influenced by ___. | Temperature |
| How are physical and chemical changes different? | Chemical changes result in new substances. Physical changes do not result in new substances. |
| True or false: Chemical changes often cause fizzing or foaming. | True |
| Water boiling is an example of a ____ change. | Physical |
| Soured milk is an example of a ___ change. | Chemical |
| When a chemical change occurs and liquids combine to form a solid it is called a ___. | Precipitate |
| Chemical changes can cause energy to change from one form into another. An example is a burning candle, the chemical energy stored in the candle converts to ___ and ___ energy. | heat and light |
| The French chemist ____ studied chemical changes in which substances seemed to lose or gain mass. | Antoine Lavoisier |
| Anotine Lavoisier studied chemical changes and first demonstrated the law of conservation of mass that states ___. | In an ordinary chemical and physical changes, mass is not created or destroyed. Mass is only transformed into different substances. |
| The law of conservation of mass is also called the law of ___ | Conservation of matter |
| The law of ___ states that energy cannot be created or destroyed. Energy can only change from one form to another. | Conservation of energy |
| Changes that ABSORB energy are called __. | Endothermic |
| Changes that release energy are called __. | Exthermic |
Created by:
wmeeks
Popular Science sets