Classroom Chemistry Grade 5

Which of the following mixtures are an example of two solids?

• Sugar and Water

• Milk and Tea

• Sand and Sugar

• Cornstarch and Water

What kind of energy do the particles in solids have?

• Lots of Energy

• A bit of Energy

• Very Low Energy

You have some leftover vegetable soup in a container in the fridge. You notice that the vegetables have settled to the bottom of the jar and all of the broth remains on top of the layer of vegetables. Which of the following statements is true?

• All the vegetables are crystals and the broth is a liquid

• The vegetables are liquid, the broth is a solid

• The vegetables are solids, the broth is a liquid

• The vegetables and broth are a supersaturated solution

These states of matter will take the shape of their container:

• Solid and a Gas

• Solid and a Liquid

• Liquid and a Gas

Which of the following is an example of a mixture with a solid and a liquid.

• Sand and Sugar

• Sugar and Tea

• Milk and Tea

• Popcorn and Smarties

Which method would be the best way to separate sand and popcorn seeds?

• Decanting

• Using a Magnet

• Using a Sieve as a Filter

• Using a Coffee Filter

Which would NOT work for separating paper clips and popcorn seeds?

• A Magnet

• Picking Out by Hand

• Using a Sieve as a Filter

Will sugar dissolve in water? What is the best way to recover the sugar if it does dissolve?

• Sugar does not dissolve so I do not need to recover it.

• Sugar does dissolve and I could recover it by letting it sit and the water would evaporate.

• Sugar does dissolve and I could recover it by using a filter.

What is decanting?

• The process of passing a mixture slowly through a coffee filter or sieve to remove the solid from the mixture

• To pour off the top layer of liquid without disturbing the layers or solid that has settled at the bottom

• When you use a magnet to remove magnetic solids from the mixture.

Carbon dioxide can be created by combining

• Baking Powder and Oil

• Baking Powder and Soda

• Sugar and Vinegar

• Baking Soda and Vinegar