An object that allows heat or electricity to pass through easily is a

• Insulator
• Conductor

Tags

NGSS.MS-PS3-3

Which of the following is insoluble in water?

• saltwater

• lemon juice

• black pepper

• sugar

What object would best complete this circuit?

• A battery
• a peice of yarn
• an insulator
• a conductor

Tags

NGSS.MS-ETS1-1

The water is ______ dense than the boat

• more
• less

Tags

CCSS.RI.4.5

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

Mass, relative density, solubility, color, texture, state of matter, conductivity, etc.

• Physical state
• Insulators
• Physical Properties 
• Inferences

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Group together based on similar traits:

• Classify
• Matter
• Float
• Physical Properties

Tags

NGSS.MS-PS1-4

Which of the following belongs in
 Group B?
Group A: beach ball, balloon, soccer ball
Group B: orange juice, water, ?
Group C: stuffed bear, apple, sock

• Dog bone
• Vegetable oil
• Pillow
• Ice cube

"A student has a toy car that is green, made of iron, and weighs 52 grams. If the student dropped his car in a grassy field, how could the student find his toy car? "

• Weigh samples of the area to find a sample that is 52g
• Use a hand lens to locate the car by its color
• Place a magnet over the area to attract the car. Use a hand lens to locate the car 
• Place samples of the area in water to determine its density

• Cardboard

• Aluminium

• Rubber

• Plastic

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS3-3

Two wires carrying electricity can create a spark if they come close together. This spark can start a fire. Wires carrying electricity are usually covered in plastic to prevent them from starting a fire. Why does the plastic keep them from starting a fire?

• Plastic is a good insulator

• Plastic can melt when heated

• Plastic is softer than wire

• Plastic conducts electricity