Summer 2025 - 6th Grade Science

A woodworker is working with a piece of wood. First, she cuts the wood. Then, she uses a chisel to remove small pieces of wood. Which TWO sentences correctly describe how the wood changes?

• Density is changed by cutting and chiseling.

• Mass is changed by cutting and chiseling.

• Volume is changed by cutting and chiseling.

• Density is increased by cutting and chiseling.

• Density is decreased by cutting and chiseling.

What is the best way to separate a mixture of sand and water?

• Using your hands because sand particles are large.

• Using a magnet because sand is magnetic.

• Using a filter, because sand does not dissolve in water.

• By freezing, because water will freeze and separate.

Which of the following properties are properties of metalloids?

• A. Brittle

• B. Malleable

• C. Solid at room temperature

• D. Poor conductor of heat

• E. Bad conductor of electricity

An engineer is developing an electrical device for a small boat. The engineer needs a lightweight material that will cover the device and protect the user from electric shock. The table shows the properties of four materials that the engineer has on hand.

• Copper

• Titanium

• Plastic 1

• Plastic 2

Four reactions are observed in a lab, as shown. Choose the words to finish the sentence. The four reactions in the image are examples of _____. In each reaction, a new _____ is produced.

• A. chemical changes, substance

• B. chemical change, mixture

• C. change in state, substance

• D. change in state, mixture

Mrs. Johnson brings a strong bar magnet to her 6th-grade science class and asks students to observe. What happens when she brings it near some iron filings in a container? Where do the students observe more iron filings being attracted to the magnet?

• At the ends of the magnet.

• Along the sides of the magnet.

• In the middle of the magnet.

• Even all around the magnet.

Why are more iron filings attracted to this particular area of the magnet?

• A. Iron filings are lighter in this area.

• B. The magnet's surface is rougher in this area.

• C. The magnetic field lines are closer in this area.

• D. The air pushes the filings to this area.

Two workers at a furniture store are moving a couch to another display. One worker pushes with a force of 150 N and the other pushes with a force of 180 N in the same direction. Determine if the forces acting on the couch are balanced or unbalanced.

• The forces are unbalanced because the net force equals zero.

• The forces are balanced because the net force does not equal zero.

• The forces are balanced because the net force equals zero.

• The forces are unbalanced because the net force does not equal zero.

The teacher asks her students to shift the angle of the string upward so it is no longer horizontal. Explain how the change will affect the distance the rocket travels and how this change is related to force.

• The balloon rocket will travel a shorter distance as the force of gravity on the balloon rocket pulls it down more.

• The balloon rocket will travel a longer distance as the force of gravity on the balloon rocket pulls it down less.

• The balloon rocket will travel the same distance as a change in angle has no effect on the effect of gravity.

• The balloon rocket will travel a longer distance as the gravitational pull on the balloon rocket is increased.

An archer is about to shoot an arrow as shown in the two pictures. Which represents kinetic energy?

• A

• B

• C

• D