Unit 1 Re-take

Which of the following is a safe practice when conducting a science experiment in the classroom?

• Eating snacks while working with chemicals

• Wearing safety goggles when handling liquids

• Running around the lab to gather materials

• Leaving unused materials at your table

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DOK Level 2: Skill/Concept

TEKS.SCI.5.1C

When equal forces are applied from opposite directions, the car on a ramp (a)  

• The car speeds up
• The car slows down
• The car remains stationary
• The car moves in a circle

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DOK Level 2: Skill/Concept

TEKS.SCI.5.7A

Which of the following best describes the effect of unbalanced forces on an object?

• The object remains at rest

• The object moves at a constant speed

• The object changes its motion

• The object stays in the same position

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DOK Level 2: Skill/Concept

TEKS.SCI.5.7A

How does gravity affect a ball thrown into the air?

• It slows down the ball and pushes it back to the ground

• It slows down the ball and pulls it back to the ground

• It keeps the ball floating in the air

• It pushes the ball further away from the Earth

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DOK Level 2: Skill/Concept

TEKS.SCI.5.7A

Which of the following scenarios best illustrates the concept of friction?

• A car sliding on an icy road

• A ball floating in water

• A bird flying in the sky

• A leaf falling from a tree

Tags

DOK Level 2: Skill/Concept

TEKS.SCI.5.7A

In a simple investigation to test the effect of force on a balloon rocket, what is the independent variable?

• The size of the balloon

• The distance the balloon travels

• The type of string used

• The color of the balloon

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DOK Level 2: Skill/Concept

TEKS.SCI.5.7B

What is the dependent variable in an experiment where you measure how far a toy car travels when pushed with different amounts of force?

• The type of toy car

• The distance the car travels

• The amount of force applied

• The surface the car travels on

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DOK Level 2: Skill/Concept

TEKS.SCI.5.7B

Which of the following is a controlled variable in an experiment testing the effect of different surfaces on the speed of a rolling ball?

• The type of ball used

• The speed of the ball

• The surface type

• The time of day the experiment is conducted

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DOK Level 2: Skill/Concept

TEKS.SCI.5.7B

When designing a simple investigation, which tool would be most appropriate to measure the length of a ramp?

• A thermometer

• A meter stick

• A stopwatch

• A balance scale

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DOK Level 2: Skill/Concept

TEKS.SCI.5.1D

Which tool would you use to observe small details of a leaf during a field investigation?

• A digital scale

• A microscope

• A hot plate

• A laser pointer

Tags

DOK Level 2: Skill/Concept

TEKS.SCI.5.1D