how can substances be identified

which of the following is a property that you can see?

• color

• hardness

• brittleness

• all of the above

the property reflectivity describes how

• easily a material can get scratched

• much light bounces off a material

• difficult it is to shape an object

• all of the above

Tags

NGSS.MS-PS4-2

a difference between copper and plastic is taht copper has a much higher

• brittleness

• solubility

• reflectivity

• electrical conductivity

which of the following properties is an example of a substance changing into a new substance?

• wood that is burned

• gold that is scratched

• iron pyrite that is broken

• sugar that is dissolved

Tags

NGSS.MS-PS1-2

what is the best way to identify flour, face powder, powdered laundry soap, powdered sugar

• take a spoon and taste it

• feel the texture of each powder between your fingers

• observe the shape of each under magnifying glass

• give up because it is impossible

what is the best material that has high thermal and electrical conductivity

• glass

• copper

• wood

• plastic

fizz from an antacid tablet and water is evidence of

• brittleness

• electrical conductivity

• thermal conductivity

• ability to change into a new substance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5