Science Review

Which mixture can be separated using the object shown below?

• Rocks and Sand

• Sand and Water

• Lemon Juice and Water

• Sand and Iron Fillings

A water wheel diagram is shown.

What type of energy makes water wheel B continue to rotate?

• Thermal Energy

• Solar Energy

• Mechanical Energy

• Electrical Energy

Wilson Johnson is credited with the invention of the rotary egg beater.

A rotary egg beater moves by -

• electrical energy

• light energy

• mechanical energy

• thermal energy

Tags

NGSS.MS-PS3-5

All of the following objects are poor insulators of electricity EXCEPT -

• 
• 
• 
• 

Tags

NGSS.MS-PS2-3

All the bulbs in the circuit are lit.

Which change would NOT cause any of the bulbs to go out?

• Removing Wire B

• Removing Wire A

• Removing Wire E

• Removing Wire D

Four groups of students study the states of matter. The teacher asks one student from each group to draw a picture of gas particles.

Which student's illustration best represents particles in a gas.

• Student A

• Student B

• Student C

• Student D

A group of students creates an incomplete circuit.

Which of the following creates a complete electrical circuit?

• Close the wires

• Add a motor

• Remove the bulb

• Add a battery

Tags

NGSS.MS-PS3-5

A group of students creates a model with a batter, bulb, and wires. Different items are used to test the model. Students select different items to connect to the loose wires. One of the items selected causes the bulb to light.

Which explanation best supports why the selected items causes the bulb to light?

• The bulb lights because the selected item is connected to the battery.

• The bulb lights because the selected item is an insulator.

• The bulb lights because the selected items is a conductor.

• The bulb lights because the selected item is connected to the bulb.

Tags

NGSS.4-PS3-2

A glass tank is filled with water. Students are given three different objects to use in an investigation.

What is the investigation most likely testing?

• State and mass

• Temperature and volume

• Sinking and floating

• Heating and cooling

Students create a poster to explain and give examples of the difference between conductors and insulators.

What should students do to validate the explanations illustrated in the poster?

• Test each of the objects listed to see which objects complete a circuit.

• Draw representations of each object on the poster.

• Connect each of the objects to a wire to demonstrate energy flow.

• Collect and record data in a notebook.