8th Science STAAR Review

(8.6A 2019-Q11)

The net force on a vehicle that is accelerating at a rate of 1.5m/s² is 1,800 newtons. What is the mass of the vehicle to the nerarst kilogram? (Hint: Force=Mass x Acceleration; F=ma)

Tags

NGSS.MS-PS2-2

(8.5C 2018 – Q11)

How many valence electrons aarre in an atom of each element in Group 15 in the periodic table? (Record your answer using the correct place value.)

• the proposed law will protect the lake because plant roots between the wetland and the lake will stop pollution from entering th elake

• the proposed law ill not protect the lake because animals that live in or near the lake will add pollution to the lake

• the proposed law will not protect the lake because groundwater will carry pollution from the weland directly into the lake

• the proposed law will protect the lake because the high elevation of the water table will block pollution from entering the lake

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?

• Coleoptera
• Heteroptera
• Diptera
• Lepidoptera

(8.6A 2019-Q36)

• F

• G

• H

• J

Tags

NGSS.MS-PS2-2

(8.5D 2019-Q17)

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Based on the key, which type of tree is the sample from?

• Ginko

• Sweet gum

• Horse chestnut

• Honey locust

Tags

NGSS.MS-LS4-2

• Particle W

• Particle X

• Particle Y

• Particle Z

Tags

NGSS.MS-PS1-1

Suppose you pull Nick, who is standing on a skateboard, using a rope at a constant acceleration. What happens when you double the mass and add a friend?

• There will be no change to the required amount of force.

• The amount of force required is slightly increased.

• The amount of force required is doubled.

• The amount of force required is four-times as great.

Tags

NGSS.MS-PS2-2

(8.7B 2018-Q30)

• F

• G

• H

• J

Tags

NGSS.MS-ESS1-1