S C 5 P 8 3

The following illustration shows a tool that can be used to separate elements of certain mixtures.

This tool can separate what type of mixture?

• a solution, such as salt water

• a mixture of particles with different densities

• a mixture of particles of different sizes, such as seashells and sand

• a mixture of magnetic and nonmagnetic items, such as steel and aluminum cans

The following illustration shows a tool that is used to separate certain mixtures.

This type of tool can be used to separate what type of mixture?

• a mixture that is a solution, such as salt water

• a mixture of particles of the same size with different densities

• a mixture of particles of different sizes, such as seashells and sand

• a mixture of steel, which is magnetic, and aluminum, which is not magnetic

Ellen has a mixture of sand and gravel. She places the mixture in a container and shakes the container. The picture below shows the mixture after it was shaken.
Which property best explains why the sand and gravel separated into two groups?

• color

• shape

• weight

• particle size

Which is the best way for him to separate the mixture so each player has the correct pieces?

• by size

• by color

• by shape

• by density

Mixtures of solids can be separated according to their properties, such as in the image shown below. Which of the following properties is being used to separate the objects in the image?

• magnetism

• shape

• size

• texture

Tags

NGSS.5-PS1-3

NGSS.3-PS2-3

Mr. Krouch's science class is learning about matter. The students receive a bag with objects and are asked to separate the objects based on any one physical property. The students separate the objects into three groups as shown below. Which physical property did the students use to separate the objects?

• color

• magnetism

• shape

• size

Tags

NGSS.5-PS1-3

Some makers of cereal add iron filings to their cereal products to increase the iron content. The flow chart below describes one method to separate the iron from the cereal. Which of the following choices would best describe the missing step in the flow chart?

• add dye to stick to the iron filings

• wait for an hour to let the iron filings sink

• boil the water to separate the iron filings out

• put a magnet into the water to attract the iron filings

Tags

NGSS.MS-PS1-2

The picture below shows a box that contains rubber cap erasers, steel screws and nuts, and corks that are made of tree bark. Jarid has been given the task of separating the screws and nuts from the cap erasers and corks. He can use any means to separate these materials, except he cannot use his hands directly to sort the materials. Which tool would be best to use to separate these materials?

• filter

• magnet

• Screwdriver

• Strainer

Jenna pours a bag full of change into a machine that sorts coins. Three plastic tokens too thick to be U.S. coins are rejected. The rest of the objects are fed through trays with openings that would allow a quarter through, then one that would allow a nickel through, then a penny, and finally a dime. Any object left after the dimes are removed is rejected, and two tiny fake coins are rejected. The coins left in each tray are then counted, and the machine reads out the amount of money originally in Jenna's bag. Which of the coins' properties did this machine use to sort them?

• color

• weight

• relative size

• magnetic properties

Craig has a mixture of salt, pepper, and water. What will happen if Craig pours this mixture through a coffee filter?

• The water, salt, and pepper will all pass through the coffee filter.

• The water will pass through the coffee filter, leaving the salt and pepper behind.

• The water and pepper will pass through the coffee filter, leaving the salt behind.

• The water and salt will pass through the coffee filter, leaving the pepper behind.