Mixtures, Solutions, Physical and Chemical change

A combination of two or more substances that can be easily separated.

• dissolve
• mixture
• solution
• physical property

the substance to be dissolved in a liquid

• solute
• solvent
• dissolve
• mixture

the liquid a substance dissolves in

• solute
• solvent
• mixture
• solution

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

• Filter
• Screen
• Magnet
• Evaporation

When we put a substance in water and stir it to see if it dissolves we are testing for_______________________.

• Relative Density
• Solubility
• Mass
• Temperature

Which of the following is an example of physical change?

• burning gas on the stove

• cracking an egg

• cooking food

• rotting apples

To separate a mixture of salt and water what separation tool/method is used?

• Evaporation

• Magnet

• Sieve

• Filters

Ice melting is a what type of change?

• Chemical change

• Physical change

What is a chemical change?

• How two chemicals react with one another when combined

• A property that we can measure or observe with our 5 senses or other tools

• When two chemicals react with one another to form a new substance.

• When a change occurs but it does not result in the formation of a new substance

Baking a cake by mixing flour, sugar, chocolate powder, eggs, and milk, and then heating them in the oven...is an example of what type of change?

• Chemical change

• Physical change