| A | B |
|---|
| If you are roasting a marshmallow over a wood fire, what two types of energy are you using? | Heat and chemical |
| If rushing water is turning the blades of a water wheel, what form of energy is being used? | mechanical |
| When will a lightbulb light? | When electrical energy is flowing in a closed circuit |
| What is the source of energy for a refrigerator? | electrical energy |
| What can you do to two pieces of wood to release energy fromthem? | rub them together |
| Is energy helpful or harmful? | Energy can be helpful and harmful |
| How do humans use energy? | they change it to another form |
| What energy chnages take place when the sun shines of you? | light to heat |
| when water is boiled in a pan on a stove, how is energy transferred? | From the stove to the pan to the water |
| Some electrical cords have metal wires inside and rubber coating outside because... | metal transfers electricity better than rubber |
| When a candle burns, what energy change is taking place? | heat to light |
| Why does a piece of wood get warm when you sand it with sandpaper? | the friction between the wood and the sandpaper releases heat. |
| What kind of energy interacts with growing plants? | light |
| How does your body cause the water in a swimming pool to get warmer? | Swimming (mechanical energy) created friction and friction causes heat, which gets transferred to the water. |
| In what ways do humans use the interactions between matter and energy? | 1. using sunlight to warm water in a pool 2.Using sunlight to dry clothes on a clothesline 3. using mechanical energy to play a piano to produce sound 4. wearing white clothing in summer 5. Using a toaster to toast bread 6. using batteries to run radios, etc |
| How wuold you release energy from your hands? | Rub them together. The friction releases heat energy |
| What type of energy is being used when you light a match? | Chemical energy |
| What kind of energy is used to work a blender? | Electrical energy |
| What kind of energy does a plant use from the sun? | Light energy |
