Maya pours peanuts, raisins, and pretzels into one bowl and stirs them together. What makes the food in the bowl a mixture?

A class cooks pasta in a pot of water. They pour the pot into a strainer so the pasta stays behind and the water runs out. Which property of the parts lets the strainer separate them?

A dish holds sand mixed with small steel paper clips. Dev slowly moves a magnet just above the mixture. What happens?

Rosa stirs sand into a glass of water, then sets the glass down and does not touch it. A few minutes later, what has happened to the sand?

Ben stirs salt into a cup of water until he cannot see any salt. He leaves the cup in a sunny window for several days, and all of the water goes away. What does he find in the cup?

A student stirs sugar into warm water. At first some sugar sits on the bottom, but after more stirring he cannot see it. He says the sugar melted. Why is melted the wrong word for what happened?

A cook shakes cooking oil and water together in a jar. Soon the oil gathers in a layer on top of the water again. What does this show?

A jar holds a mixture of salt and sand. A student adds water and stirs until the salt dissolves. Which properties of the parts let the student get the dry salt back by itself?

Sugar that has dissolved in a glass of water is still in the water, even though you cannot see it.

A box holds a mixture of red buttons and blue buttons that are all the same size and shape. What is the best way to separate the two colors?

Which change would make sugar dissolve faster in a cup of water?

Which is an example of a mixture?

True or False: In a mixture, the parts can often be separated by physical methods.

A student mixes sand and iron filings. Which tool would best help remove the iron filings?

Which property makes it easy to separate gravel from sand using a screen?

Salt is stirred into water until it cannot be seen. What happened to the salt?

What do we call a mixture in which one material dissolves and spreads evenly through another?

Which mixture is most likely a solution?

True or False: Dissolving sugar in water creates a brand-new substance.

Which method would best separate sand from a sand-and-water mixture?

Ana keeps adding sugar to a cup of water and stirring. After a while, the new sugar just sits on the bottom of the cup. Why?

Water is poured into each mixture and stirred. In which mixture would one part float to the top so it can be skimmed off?

Which material would a magnet most likely attract?

A student mixes oil and water. After a while, the oil floats on top. Which property helps separate them?

True or False: All mixtures look the same throughout.

Which question is most useful when choosing a way to separate a mixture?

A mixture contains pebbles, sand, and water. Which is a good first step to remove the pebbles?

Which statement about the parts of a salad is true?

When cocoa powder does not dissolve completely in milk, the mixture may look:

Which item is designed to separate solids from liquids?

True or False: Crushing a sugar cube into small grains makes it dissolve faster in water.

Which mixture would be hardest to separate by hand?

A clear glass of lemonade has sugar dissolved evenly in it. This is an example of a:

A bowl of water is left in the sun until the bowl is empty and dry. What happened to the water?

Which mixture could be separated using magnetism?

True or False: Water can dissolve every solid material.

A student pours muddy water into a jar and lets it sit still overnight. What will the jar most likely look like in the morning?

Which property explains why sand settles to the bottom of a jar of water?

True or False: Some materials, such as sand, do not dissolve in water, no matter how long you stir.

Which pair of methods could separate a mixture of sand, salt, and water?