Countdown to Science STAAR 3.1, 3.2, 3.3

In a simple investigation during science

class, hot water is poured into a plastic cup.

Then the plastic cup is covered with plastic

wrap. After a few minutes, students begin

to observe water droplets forming on the

inside of the plastic wrap.

Why are water droplets observed on the

inside of the plastic wrap?

• The water vapor in the cup is

  evaporating.

• The liquid water in the cup is

  condensing.

• The water vapor in the cup is

  condensing.

• The liquid water in the cup is

  precipitating.

Tags

NGSS.MS-PS1-4

Which of the following materials conduct

electricity?

• Metal paper clip

• Colored pencil

• Plastic ruler

• Rubber easer

A science teacher mixes clay beads, wood beads and iron beads all together in a beaker during an experiment.

Which experimental procedure listed below is the best way to separate the three types of beads?

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• 
• 

When water from a river reaches a lake or an ocean, the flow of water slows down. Then sediment is dropped near the mouth of the river. Which type of landform is created?

• V-shaped valley

• Delta

• Dune

• Canyon

Tags

NGSS.MS-ESS2-2

A teacher shows the class the following

list. She asks the students to determine

whether each activity listed is a pulling

force or a pushing force.

Which statement below is correct?

• One activity is push and four

  are pull.

• Two activities are push and three

  are pull.

• Three activities are push and two

  are pull.

• Four activities are push and one

  is pull.

Tags

NGSS.3-PS2-1

Which type of organism transfers the

most energy within a food web?

• Consumer

• Decomposer

• Prey

• Producer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

All the following are inherited traits except –

• pulling your hand away from a hot stove

• liking to eat peanut butter and jelly sandwiches

• having straight, blonde hair

• being able to roll your tongue

Tags

NGSS.MS-LS3-1

The Arctic ecosystem is a very cold environment, covered in snow and ice, and in

complete darkness during the winter months each year. Despite the harsh weather, there are many animals that call the Arctic their home.

Which of these animals most likely inhabits the Arctic ecosystem?

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• 
• 

Tags

NGSS.MS-LS2-1

A geologist uncovered a sedimentary

rock layer containing many primitive fern

fossils, like the ones shown in the image

below.Which of the following environments most

likely existed when this sedimentary rock

layer was formed?

• Ocean

• Forest

• Desert

• Tundra

Tags

NGSS.MS-LS4-1

Which letter in the

water cycle diagram

is an example of

absorption of solar

energy?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4