One bar magnet sits on a table, and a rubber band suspends another magnet above it. In the view on the left, the upper magnet is held in place and cannot move. In the view on the right, the upper magnet has been released. How did the potential energy change when the upper magnet was released?

• Magnetic, elastic and gravitational potential energy increased.

• Magnetic, elastic and gravitational potential energy decreased.

• Magnetic and elastic potential energy increased, and gravitational potential energy decreased.

• Magnetic and gravitational potential energy decreased, and elastic potential energy increased.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-5

NGSS.MS-PS3-2

This image represents Earth's​ ​ (a)   ​ which causes us to experience​ (b)   in ​ (c)  

• Day to Night
• 24 hours.
• seasons
• revolution
• rotation
• 365.25 days
• a month
• the moon's orbit

This image represents Earth's​ (a)   which causes us to experience​ (b)   in ​ (c)  

• revolution
• seasons
• 365.25 days.
• rotation
• weather
• 24 hours
• a month
• the moon's orbit
• tides

Tags

NGSS.MS-ESS1-1

Identify the animals that eat grass in the food web.

Groups:

(a) Animals that Eat Grass

,

(b) Animals that do not eat grass

• Rabbit

• Bird

• Frog

• Mouse

• Grasshopper

• Hawk

• Snake

• Fox

Tags

NGSS.MS-LS2-2

Identify where the least amount of energy and most energy comes from in this food web.

a

b

Most energy

Least energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where does the energy in this food web come from?

• The sun

• Grasses and plants

• Hawk

• Nutrients in dirt

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In science we use _ to measure the temperature of something. We use the _ to describe units. ​ ​ (a)  

• thermometer, degree Celcius
• meter stick, meter
• scale
• barometer, air pressure
• thermometer, degree Fahrenheit 

According to this chart, what type of relationship does the lions and gazelles have?

• Symbiotic Relationship

• Predator-Prey

• Competition

Tags

NGSS.MS-LS2-2

Place the following descriptions in the correct location

Groups:

(a) Abiotic Factor

,

(b) Biotic Factor

• Temperature

• Sunlight

• Bacteria

• Soil composition

• Birds

• Mineral content

• Plants

• Air quality

• Water availability

• Humidity

• Mammals

• Nonliving factors in an ecosystem

• Animals

• Fungi

• Living factors in an ecosystem

• Insects

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Weather Fronts

Groups:

(a) Cold Front

,

(b) Warm Front

• Mild weather changes
• Intense precipitation and thunderstorms

• Gradual temperature increase

• Severe weather changes

• Light to moderate precipitation
• Rapid temperature drop

• 
• 

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6