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Science Review
Review for science CBA
| Question | Answers |
|---|---|
| What type of energy does a candle produce? | Light and Thermal |
| Solubility is ____________________. | It's the ability of a substance to dissolve in water. |
| An kitchen stove transforms _______________ to thermal energy. | Electricity |
| True or False: Color, volume, taste and shape are all physical properties of matter. | True ( Also, temperature, state of matter, magnetism, solubility, density, etc) |
| What purpose does a filter serve to separate a mixture? | It separates substances that don't dissolve like sand, pepper, and iron filings. |
| Why does oil float on water? | Oil is less dense than water. |
| What is a hypothesis? | A hypothesis is a prediction before experimenting. |
| What is an independent variable? | An independent variable is the one thing that changes in an experiment. |
| A procedure is __________________. | the step by step instructions on how to do an experiment. |
| What does a conductor of energy do? | It allows the energy to pass through. |
| What are good conductors of heat? | metals: foil, copper, steel sometimes glass |
| What are good conductors of electricity? | metals: paper clips, nails, screws, nuts & bolts, coins, foil, etc. |
| True or False: All metals are magnetic. | False |
| What metals are magnetic? | Iron, Nickel, Cobalt, Steel (it has iron) |
| How can you separate salt from water once it is dissolved? | Boil water or let it sit so that water can evaporate and leave the salt behind. |
| What are good insulators of energy? | Wood, plastic, cloth, wool, rubber |
| When water is heated, it turns into water vapors. This process is called __________. | Evaporation |
| Water droplets begin to cool and stick together to form clouds or fog. This also happens when water droplets stick to a window. This is called ___________________. | Condensation |
| Dew is an example of ________________. | Condensation |
| A fan turns on with the use of electricity. What type of energy is produced once the fan turns on? | Mechanical energy |
| A piece of cork floats over water. It is said to be ____ ____ than water. | less dense |
| Oil is ___ ___ than water. | less dense |
| A paper clip and a penny are ___ ___ than water because they sink. | more dense or denser |
| Oil does not mix well with water therefore maintaining its _______ _______. | physical properties |
| Does a cup with a cold drinks actually "sweat"? What happens? | NO, the warmer air outside the cup cools and sticks to the outer part of the cup holding the cold drink as it condenses. |
Created by:
sonnyamosqueda
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