T2 Lesson 3: Changes in Matter

Ian has been learning about different kinds of mixtures at school. While he was helping prepare dinner for his family, he noticed that some of the food they were making were different kinds of mixtures. What kind of mixture was their dinner if they were having spaghetti and meatballs?

• heterogeneous
• homogeneous
• solute
• suspension

Having studied mixtures at school, Daniel wanted to investigate how to separate the parts from different mixtures. He knew that the individual components of a solution kept their properties. So, Daniel gathered his materials and began to separate some of the mixture combinations. Which of the following tests could he perform to separate different kinds of mixtures? Choose the THREE statements that apply.

• Use a cup of salt and dissolve it by adding water.
• Use a magnet to separate the metal parts.
• Use a hotplate to evaporate the liquid.
• Use a filter to separate large particles.

Tags

NGSS.MS-PS1-2

Jose had an assignment to classify mixtures he found around his home. As he started exploring the house, he recalled that mixtures are defined by the size and behavior of the particles in them. He found some buckets of paint in the garage. What kind of mixture can paint be classified as?

• colloid
• solution
• solvent
• suspension

While making chicken soup for his family one evening, Luis added the amount of salt the recipe called for. After tasting the soup, he decided the seasoning was correct. He then let the chicken soup simmer for two hours to blend the flavors. But when he served the soup, it was too salty. What happened to the soup to make it so salty?

• He added too much solvent.
• He added something else besides salt.
• Some of the chicken was saltier than the rest of it.
• Some water evaporated and concentrated the salt.

When Ava first opened her beverage, there were lots of bubbles. However, as her drink got warmer, she noticed that there were fewer bubbles in it. In general, as the temperature increases, the solubility of solids increases, while the solubility of gases ________________________.

• decreases
• increases
• remains the same

Tags

NGSS.MS-PS1-4

A solution is what type of mixture?

• Homogeneous
• Heterogeneous

Match the word to the definition: A mixture with particles that can be seen and easily separated by settling or filtration

• Solute
• Colloid
• Solvent
• Suspension

Match the word to the definition: The measure of how much solute will dissolve in a solvent

• Solubility
• Solvent
• Suspension
• Colloid

What type of mixture is the following an example of? Garden Salad

• homogeneous
• heterogeneous

What type of mixture is the following an example of? Koolaid

• Homogeneous
• Heterogeneous