Question | Answer |
What are atoms? | Smallest Unit of matter |
What is matter? | Anything with mass and volume |
Give some examples of matter. | ladybug,water,textbook, smoke, humans |
Give some examples of non matter. | Energy, light, and sound |
What is mass? | How much matter is in something. |
What is weight? | The pull of gravity on an object. |
Explain the difference of mass and weight of the Earth and the moon. | Sara is incorrect because the weight of an object depends on the gravitational pull. Mass does not have to do with gravity. It stays the same. |
What is an element? | An element only contains one type of atom |
What is a molecule? | Two or more atoms chemically combined. |
How can you separate compounds? | By breaking bonds between atoms. |
Do atoms and molecules move? | All atoms move. They vibrate in a solid, they slide in a liquid, and move freely in a gas. |
What does it mean if a substance is pure? | It only has one type of component. |
Write the formula for volume. | Length x Width x Height |
length= 23 cm, width, 36 cm, and height 8 cm | 6624 cm |
length= 48 cm, width=42 cm, and height= 18 cm | 36288 cm |
Write the formula for density | Mass divided by Volume |
A glass of orange juice has a volume of 8 cm and a mass of 24 grams | 3 g/cm |
A battery has a volume of 25 cm and a mass of 250 grams | 10 g/cm |