Science review mid part 2

Students place paper clips on a desk and then hold a magnet under the desk. What evidence would BEST show that the magnetic field was able to pass through the desk?

• The students were able to pick up these paper clips with a magnet.

• The paper clips move when the magnet is moved under the desk.

• The magnet they are using is the largest one in the classroom.

• 
  The top of the desk is made of a kind of plastic.

Tags

NGSS.MS-PS2-5

A student is asked to plan a demonstration to show a physical change with a piece of paper. Which of the following investigations can the student use to accurately represent the type of change?

• The student can fold the paper in half to show how the paper changed its chemical properties.

• The student can cut the paper into tiny pieces to show how the paper changed its physical properties.

• The student can put water on the paper to show how the paper can change its state of matter from a solid to a liquid.

• 
  The student can burn the paper to show how the paper can also resemble ash and smoke to show a change in state.

A student notices a pile of ice on the sidewalk before school. At lunch time, the student returned and the pile of ice had completely melted into a puddle. What is the best argument for what happened to the ice?

• The ice lost heat throughout the day as the sun became more direct, causing it to melt into a liquid.

• The ice gained heat throughout the day as the sun became more direct, causing it to melt into a liquid.

• The ice gained heat throughout the day as the sun became more direct, causing it to evaporate into water vapor.

• The ice lost heat throughout the day as the sun became more direct, causing it to evaporate into water vapor.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A student is investigating chemical changes by using different materials. Which investigation would provide evidence of a chemical change?

• Melting butter with fire would provide evidence of a chemical change because the solid would change shape.

• Cutting rope into many smaller pieces would provide evidence of a chemical change because the pieces cannot be put back to its original form.

• Placing salt into water and stirring the salt until it dissolves would provide evidence of a chemical change because the dissolved salt is gone and can never come back.

• Combining two room temperature liquids that give off heat and gas would provide evidence of a chemical change because the liquids reacted to create a new substance.

Tags

NGSS.MS-PS1-2

A student placed a piece of ice into a bucket and left it out in the sun. The student then returned to record the observations. What evidence might the student use to defend whether a chemical or a physical change has occurred?

• The student should report that a physical change has occurred because even though the temperature has changed, the change did not result in a new substance being created.

• The student should report that a chemical change has occurred because the ice began at a different temperature than the resulting water. A temperature change is the indicator that proves a chemical change has occurred.

• The student should report that a physical change has occurred because the ice began at a different temperature than the resulting water. A temperature change is the indicator that proves a physical change has occurred.

• 
  The student should report that a chemical change has occurred because the state of the substance changed from a solid to a liquid. If a substance changes state, it has created a new substance, and it indicates a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which of the following correctly describes a dam?

• They are built at the top of waterfalls and they keep water from leaving the plateau.

• They are built beside rivers and the control the spread of flood water.

• 
  They are built across waterways and they block, or change the natural flow of the water.

• They are built beside lakes and they prevent the water from evaporating.

What question can scientists learn from a seismograph?

• How deep is the earthquake?

• How strong is the earthquake?

• 
  How far away will the earthquake travel?

• How much damage will the earthquake cause?

Tags

NGSS.MS-ESS3-2

Which of the following correctly compares dams and levees?

• 
  A dam is designed to prevent flooding, and a levee is designed to change the direction of water flow.

• A levee is designed to prevent flooding, and a dam is designed to change the direction of water flow.

• Both structures are designed to prevent flooding, but a dam does not block the flow of water like a levee.

• Both structures are designed to prevent flooding, but a levee does not block the flow of water like a dam.

Tags

NGSS.MS-ETS1-2

What is the best way to prevent erosion along a shoreline?

• introduce a new species of fish to the area

• build hotels along the beach to boost tourism

• plant native vegetation to hold the sand in place

• 
  remove the old shells along the beach

Tags

NGSS.MS-ETS1-2

NGSS.MS-LS2-5

Which of the following is an example of beach reclamation?

• clearing away garbage from a beach

• 
  removing human objects from a beach

• adding sand to a beach that is eroding

• 
  creating a larger beach by removing grasses

Tags

NGSS.MS-ETS1-2