Science Quiz

Which of the following is an example of a heterogeneous mixture?

• Cookies and cream ice cream

• Soy sauce

• Honey

• Saltwater

Which of the following is an example of a homogeneous mixture?

• Sugar water

• Trail mix

• Mixed vegetables

• Salad

In a heterogeneous mixture, the substances

• 1. can be physically separated

• 1. Are chemically combined

• 1. Can only be separated through chemical processes

• 1. Break down into new substances

Which of the following is an example of a chemical change?

• Breaking a rock into smaller pieces

• Stirring flour and sugar together in a bowl

• Adding food coloring to water

• Burning wood in a fireplace

What happens to the rate of a reaction when you decrease the temperature of a chemical reaction?

The rate of the reaction ​ (a)  

• decreases
• increases
• Stays the same
• increases, then decreases

Sugar water is created by combining sugar and water. The sugar then dissolves in the water to create sugar water. In that scenario ​ (a)   is the solute. ​ (b)   is the solvent. ​ (c)   is the solution.

• sugar
• Water
• Sugar water

​ is not an example of a separation method we can use to separate a mixture​ (a)  

• Boiling
• Filter
• Magnet
• electrolysis

______ is a measure of how much a solute can dissolve in a given solvent at a given temperature

• Solvent

• Solute

• Solution

• Solubility

When a solution can no longer dissolve any more solute, it is called what?

• Peaked

• Saturated

• Unsaturated

• Salty

An increase in the temperature does what to the solubility of a solid solute?

• Increases the solubility

• Decreases the solubility

• Keeps the solubility the same

• Decreases, then increases the solubility