Density and Physical/ Chemical Changes?

Ice melting is an example of a?

• physical change

• chemical change

Roasting a marshmallow is an example of a?

• Physical Change

• Chemical Change

What two types of measurements make up DENSITY?

• Temperature and Mass

• Grams and Centimeters

• Volume and Weight

• Mass and Volume

Look at this image. Which object has the LOWEST density in water? How?

• The Ping Pong Ball because it floats to the top

• The bolt because it has sunk to the bottom

• The soda cap because it is not just full of air like the Ping Pong ball

Look at the graduated cylinders- what is the volume of the key? (Use the water displacement method.)

• 50mL

• 3mL

• 53mL

• 25mL

Is mowing the lawn a physical or chemical change?

• Physical Change

• Chemical Change

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL

• 7 g/cm³

• 28 g/cm³

• 1/7 g/cm³

Is corroding metal a chemical or physical change?

• chemical change

• physical change

If an object has a density of .6 g/mL and you put it into water, will it sink or float?

• sink

• float

Is making salt water to gargle with a physical or chemical change?

• chemical change

• physical change