Mixtures, solutions, chemical, and physical changes

Front

Which of the following is an example of physical change?

• burning gas on the stove
• cracking an egg
• cooking food
• rotting apples

Back

cracking an egg

Front

A combination of 2 or more substances that cannot be easily separated is called?

Back

Solution

Front

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? Options: Filter, Sieve, Magnet, Evaporation

Back

Magnet

Front

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

Back

Evaporation

Front

What is a substance that is dissolved in another substance?

Back

Solute

Front

Why did the scientists stir the solution at a high rate of speed?

Back

Stirring allows the solute to be more easily dissolved.

Front

Ice melting is a what type of change?

Back

Physical change

Front

What is a chemical change?

Back

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

Front

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?

Back

Chemical change

Front

Which student correctly recorded all the changes that took place in the investigation of physical and chemical changes using paper? Options: Student 1, Student 2, Student 3, Student 4.

Back

Student 4