Science Interim Reviews

Indira uses her electromagnet to pick up some paper clips lying on the ground. Of the twenty-five paper clips on the ground, only twelve are attracted to her electromagnet and stay attached. What would be the best way for Indira to increase the strength of her electromagnet?

• add another battery

• wrap more wire around the nail

• Use plastic instead of a nail

• connect a battery to a fridge magnet

The picture shows two steep valleys and two rivers that join together and become one larger river in a wider valley. A student claims that both valleys have been formed by the same process over a long period of time. Which argument BEST explains why the student’s claim is correct or incorrect?

• The student’s claim is correct; the evidence in the picture shows that both valleys were formed by the destructive forces of weathering and erosion because flowing water breaks down rock and carries the small pieces downstream.

• The student’s claim is correct; the evidence in the picture shows that both valleys were formed by the constructive force of deposition because flowing water carries large rocks from far away and drops them along a river, making the banks taller.

• The student’s claim is not correct; the evidence in the picture shows that valley 1 was formed by the destructive forces of weathering and erosion because flowing water breaks down rock and carries the small pieces downstream, but valley 2 was formed by the constructive force of deposition because flowing water carries large rocks from far away and drops them along a river, making the banks taller.

• The student’s claim is not correct; the evidence in the picture shows that valley 1 was formed by the constructive force of deposition because flowing water carries large rocks from far away and drops them along a river, making the banks taller, but valley 2 was formed by the destructive forces of weathering and erosion because flowing water breaks down rock and carries the small pieces downstream

Tags

NGSS.MS-ESS2-2

A student is investigating magnetic field strength using the model shown. What is the student most likely investigating?

• if the type of material placed between an object and a magnet affects the magnetic field's strength

• if the shape of a material placed between an object and a magnet affects the magnetic field's strength

• if the thickness of material placed between an object and a magnet affects the magnetic field's strength

• if the temperature of a material placed between an object and a magnet affects the magnetic field's strength

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Some beneficial bacteria live inside the human digestive tract. How do these bacteria most help the body function?

• They help produce energy from food eaten.

• They help digest food in the intestines.

• They help neutralize toxins present in food.

• They help to liquefy food in the esophagus.

The picture shows a geographic information system (GIS) map. Which question is this map designed to ask?

• Where will faulting most likely occur?

• Where will flooding most likely occur?

• Where will a volcano most likely occur?

• Where will an earthquake most likely occur?

Tags

NGSS.MS-ESS3-2

A student finds a nail wrapped with wire in a box of science supplies. She remembers it can be used as a magnet. The nail does not attract any paper clips but the ends of the wires are not connected to any power source. Next, she finds a battery and connects the ends of the wires to the battery. Now the nail can attract fifty paperclips. Which statement describes the type of magnet she found?

• It is a bar magnet because it has a nail and wires.

• It is a bar magnet because it needs a power source.

• It is an electromagnet because it has a nail and wires.

• It is an electromagnet because it needs a power source.

Which of the following is a major difference between electromagnets and permanent magnets?

• Permanent magnets can be turned on and off, while electromagnets are always producing magnetic fields.

• Electromagnets can be turned on and off, while permanent magnets are always producing magnetic fields.

• Electromagnets are always stronger than permanent magnets.

• Permanent magnets are always larger than electromagnets.

Which picture shows a type of landform that can create islands from molten rock?

• 
• 
• 
• 

Tags

NGSS.MS-ESS2-1

The Galápagos Islands were formed by the eruption of a string of volcanoes, which have erupted more than 50 times in the past 300 years. How does the continuing volcanic activity affect the islands?

• Each eruption causes the amount of freshwater on the islands to quickly increase.

• Each eruption causes the amount of landmass of the islands to quickly increase.

• Each eruption causes part of the islands to disappear into the ocean.

• Each eruption causes all the organisms on the islands to migrate.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Marlon and Kamia are watching a storm through the window. The photograph shows a lightning strike they see. Kamia says that the lightning is an example of current electricity. Marlon says that the lightning is an example of static electricity. Which statement best explains who is correct?

• Kamia because the lightning is very powerful and can cause damage

• Kamia because the lightning sends volts of electricity through the ground

• Marlon because the electricity uses the ground as a conductor to pass from the clouds

• Marlon because the electricity does not continue to flow after the lightning reaches the ground

Tags

NGSS.MS-PS3-5