Topic 1 Review

Which of the following changes demonstrates a chemical property?

• substance breaks in half
• substance combusts
• hammer bounces off a substance
• substance floats in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a solution?

• salt water
• macaroni and cheese
• cake mix
• vegetable soup

The abilities to dissolve in water and to conduct electricity are examples of

• natural properties
• chemical properties
• natural laws of matter
• physical properties

Which of the following is a substance?

• salt water
• macaroni and cheese
• cake mix
• vegetable soup (Pick me!)

Which is the correct equation for calculating density?

• density = mass/volume
• density = mass/weight
• density = volume/mass
• density = volume/weight

Weight is a flawed measure of mass because it

• is not used in other countries
• is affected by the force of gravity
• tends to fluctuate (fluctuate means change)
• can be influenced by temperature and pressure

What is the density of an object whose mass is 180 grams and whose volume is 45cm cubed?

• 4cm cubed/g
• 0.25g/cm cubed
• 4 g/cm cubed
• 0.25 cm cubed/g

What two measurements should be made in order to determine the volume of an irregularly shaped object using a graduated cylinder half filled with water?

• the volume of the water without the object and the volume of the water with the object in it
• the volume of the cylinder with no water, and the total volume of water the cylinder will hold
• the volume of the water with the object in it, and the total volume of the water the cylinder will hold
• the volume of the cylinder with the water and the object in it, and the volume of the cylinder with no water

Which of the following describes a physical change?

• A marshmallow burns over an open flame
• Icicles melt from a rooftop
• A cat eats a piece of fish
• Milk turns sour

Tags

NGSS.MS-PS1-4

Which of the following describes a chemical change?

• clear liquids mix, producing a cloudy liquid with yellow chunks
• silver coins are melted down and shaped into solid brick
• salt is added to a pot of water and the water's boiling point changes
• an apple is chopped into eight slices

Tags

NGSS.MS-PS1-2