8th Grade Science Readiness Standards 2024-2025

In a chemical reaction producing carbon dioxide and water from glucose and oxygen, if you start with 180g of glucose and 192g of oxygen, the total mass of products will be:

• 372g

• 360g

• 440g

• The mass cannot be determined without more information

Tags

NGSS.MS-PS1-5

Which force pair represents Newton's Third Law when a book sits on a table?

• Gravity pulling down and friction sideways

• Normal force up from table and gravity down from Earth

• Weight of book down on table and normal force up from table

• Friction between book and table surfaces

A 2kg object experiences a net force of 6N. What is its acceleration?

• 12 m/s²

• 3 m/s²

• 4 m/s²

• 8 m/s²

Tags

NGSS.MS-PS2-2

During photosynthesis, what explains why mass is conserved?

• Energy is converted to mass

• Atoms are rearranged but not created or destroyed

• New atoms are created from sunlight

• Mass increases due to stored energy

Tags

NGSS.MS-PS1-5

In the chemical formula Al₂(SO₄)₃, how many sulfur atoms are present?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Which best describes a red supergiant star on the H-R diagram?

• High temperature, high luminosity

• Low temperature, high luminosity

• High temperature, low luminosity

• Low temperature, low luminosity

During a rocket launch, which of Newton's laws explains the upward motion?

• First law only

• Second law only

• Third law only

• All three laws work together

Tags

NGSS.HS-PS2-1

If Earth's axis wasn't tilted:

• We would have no seasons

• Seasons would be more extreme

• Only the equator would have seasons

• Seasons would occur monthly instead of yearly

Tags

NGSS.MS-ESS1-1

A car accelerates from 0 to 60 km/h in 5 seconds. If its mass is 1000kg, what was the net force?

• 3333.33 N

• 12000 N

• 5000 N

• 200 N

Tags

NGSS.MS-PS2-2

In a subduction zone, what directly causes earthquakes?

• Magma rising

• Plate friction and sudden release

• Ocean water pressure

• Temperature changes

Tags

NGSS.MS-ESS3-2