Lewis - Matter (TEKS 4.6) Test HMH

Mixtures can be identified and compared. What do ALL mixtures have in common?

• They are a combination of substances that give off a gas.

• They are any type of matter that can change its shape or color.

• They are any type of matter that evaporates when heat is added.

• They are a combination of two or more substances that keep their identities.

Lara uses a balance to measure the mass of some snap-together blocks. The mass of a red block is 2 g, a blue block is 5 g, and a yellow block is 10 g. She then makes a toy building using THREE of each type of block. If she measures the mass of the building, what would it MOST LIKELY be?

• 44 g

• 45 g

• 46 g

• 51 g

Maisy mixes Sample A and Sample B together in a clean 100 mL beaker to collect measurements as evidence. What will be the mass of the mixture?

• 10 g

• 30 g

• 52 g

• 100 g

Tags

NGSS.MS-PS1-2

Which statement BEST supports the answer to question 3?

• The oil and water will expand to fill the beaker so that matter will be conserved.

• The total mass of a mixture of oil and water will be the mass of the oil less the mass of the water.

• Water will fill the spaces in between the oil particles to conserve matter and the mass will be the same as that of the oil.

• The total mass of a mixture of oil and water will be the sum of the mass of the oil and the mass of the water because matter is conserved.

Tags

NGSS.MS-PS1-5

Natalia is investigating properties of water. She uses a thermometer to measure four samples of matter. She lists the results in the table below. Which sample is solid, which is liquid, and which is a gas?

• Gas

• Sample 2

• Liquid

• Sample 3

• Solid

• Sample 1

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Chantilly measured 50 grams of dish soap and 100 grams of water into two jars. Then she poured 50 grams of soap into a jar with 100 grams of water, closed the jar, and shook it up, making bubbles. She measured the mixture of soapy water. Chantilly drew this model to show her classmates what she observed.

Which statements about Chantilly’s model are evidence that matter was conserved? Pick TWO correct answers.

• A. The model shows that dish soap weighs more than water.

• B. The model shows that the bubbles weigh more than the water.

• C. The model shows that shaking the mixture does not change its mass.

• D. The model shows that mass of the soap and water is equal to the mass of the mixture.

Tags

NGSS.MS-PS1-5

Kelsey and Mickey wondered what would happen to different metals if they were put out in the rain. They chose two pieces of metal: one was shiny and one was dull and black. Each piece weighed 283 grams. Every three days the girls would pour 28 grams of water over each piece of metal. After five weeks, they noticed that the black metal was covered in orange-colored powder. The shiny silver piece was not. They weighed both pieces of metal at the end of five weeks. After they scraped the orange powder off, the black piece of metal weighed only 241 grams.What happened to the piece of black metal, and why did it weigh less after the experiment?

• The black metal was iron. When iron is exposed to water, rust forms. The girls learned in class about conservation of mass. They knew that the extra weight had to be somewhere. Kelsey suggested that Mickey weigh the rust. It weighed 42 grams.

• The black metal was aluminum. When aluminum is exposed to air, it forms a protective layer that weighs less.

• The black metal was copper. When copper is exposed to water, it dissolves partially, reducing its weight.

• The black metal was lead. When lead is exposed to water, it reacts and forms a lighter compound.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Rama has two mixtures. Mixture A is salt and water, and Mixture B is oil and water. What can Rama do to separate the parts of each mixture so they can be investigated AND how are Rama’s two mixtures different from one another?

• Use a paper filter.

• Boil and use evaporation.

• Freeze it and the salt and oil will separate.

• Weigh it.

Tags

NGSS.MS-PS1-2

Emerald is making mixtures and she wants to compare them and classify the mixtures that are solutions. How can these mixtures be classified? Write the letter of each answer in the correct box. Not all answers will be used.

• Not a solution

• Salt water

• Solid and liquid solution

• Mud

• Liquid and liquid solution

• Vinegar and water

Junior walks into the kitchen. How can he classify the states of matter that he sees in his kitchen?

• Liquid

• 
• Gas

• 
• Solid

• 

Tags

NGSS.MS-PS1-4