7U3 Tools Measurement and Density Test

What is the formula for density?

• volume divided by mass D= V / M
• mass times volume D= M * V
• mass divided by volume D= M / V
• volume minus mass. D = V- M

Here is a photo of the same liquid and solid substances as we used for our lab. Click on the photo to make it larger before answering: Which of the following statements is true?

• The crayon is less dense than the pasta
• The crayon is less dense than the wood
• The paperclip has a density that is less than the red liquid

• This is a great on the go snack!

The box in the image that has the HIGHER density is (a)   .

• Box A
• Box B

Density could be described as...

• the ratio of the amount of matter to the amount space
• the space that an object takes up
• the amount of matter plus the amount of space

To calculate the density of an object, you need to know its (a)   .

• its mass and its weight
• its weight and its length
• its mass and its volume
• its mass and its length

To find the mass of an object, the tool you would use is a ...

• balance/scale
• ruler
• graduated cylinder

To find the volume of a IRREGULAR SOLID object, the tool you would use is a (a)   .

• balance/scale
• ruler and the H x W X L formula
• graduated cylinder and the water di

Which of the following has the lowest density?

• hot water
• room temperature water
• cold water

Mark notices that bananas float in water. However, when he peels them, the unpeeled bananas sink. Using what you know about density, explain why a banana with a peel can float, while unpeeled bananas sink.

Which of the following lists the objects from this table in order how they would layer from TOP to BOTTOM in a density column?

• penny, molasses, cream, popcorn kernel, olive oil
• olive oil, cream, popcorn kernel, penny, molasses
• olive oil, popcorn kernel, cream, molasses, penny
• popcorn kernel, olive oil, cream, molasses, penny