Grade 5 Unit 1: What Matter Is Made Of PRE-Test for SY24-25

Rafael’s dad filled a plastic gas can half full at the gas station. He left the closed gas can in the 

sunshine while he mowed the lawn. When it was time to fill the lawn mower, the sides of the gas   

can were pushing out.

Which answer best explains why the gas can change shape?

• The sun’s heat causes the molecules to spread out, leading to the expansion of the can.

• The gas molecules in the can began to create more molecules because it is not moving which caused the can to fill up and swell.

• There is conservation of molecules in every change of the state of matter.

• Matter has weight and can have shape depending on the type of container.

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Andrew claims that air is made up of many tiny particles that have mass but are too small to see. Which observations can be used as evidence to support his claim? Select the two statements that best support his claim.

• leaves blowing on a windy day

• rain falling from the clouds

• blowing into a balloon to inflate it

• temperature rising on a summer day

During a field trip to the Howard B. Owens Science Center, a group of students conducted an investigation in which they observed several properties of four different materials. The students recorded their observations in the table.

Select the material that is most likely a metal.

• Material A

• Material B

• Material C

• Material D

Since metals always _______________, this means that the material most likely to be a metal has this property. Since very few non-metal objects ____________________, an object that has this property is probably a metal.

Select the answer choice that best represents the correct order to complete the statements above and support the answer to #3.

• Conduct heat; bend into different shapes

• Bend into different shapes; are attracted to a magnet

• Conduct heat; are attracted to a magnet

• Are attracted to a magnet; bend into different shapes

Read the information below about a local recycling center to answer question 6.

A recycling center has proposed a new process to sort the trash that comes through the facility. First, they will place all the trash on a conveyor belt. Then, all the trash on the conveyor belt will pass under a large magnet. After the magnetic items have been removed, the trash will pass over a screen. Objects heavier than 30 grams will fall through the screen.

Plastic bottles are made of a different material from glass bottles. However, based on a recycling center’s research, plastic bottles will end up in the same bin as glass bottles using the proposed process. Unfortunately, they will not be able to recycle the plastic and the glass together.

The recycling center also wants to add a new step to its process to separate the glass bottles from the plastic bottles.

• Click one to continue

• Click one to continue

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Stephen was tasked with identifying possible solutions for this problem. He remembered that under pressure, glass breaks easily and plastic will squeeze into a smaller shape. He researched the melting temperatures of each material and found that plastic melts at around 170℃, while glass melts at temperatures from 1400℃ to 1600℃!

He proposed five (5) possible solutions for separating glass bottles from plastic ones. Which two (2) of the following five (5) solutions will work?

• Run the bottles through a crushing (smashing) device.

• Separate the bottles by weight.

• Heat the bottles to 180℃.

• Heat the bottles to 180℃.

• Place them in acid to see which ones dissolve.

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Read the information below about a local recycling center to answer questions 8-10.

Read the information below to answer questions 5-7. One summer Ethan and Rachel wanted to create a sweet treat while investigating what happens when matter changes form. The materials they used are pictured below. They used the amounts of Kool-Aid® powder, sugar, and water shown.

                               

Then they followed this procedure.

1. Make Kool-Aid® from the Kool-Aid® mix, sugar, and water.

2. Pour all of the Kool-Aid®  into the ice cube tray. Put the same amount of Kool-Aid® into each spot in the tray. Do not leave any Kool-Aid®  leftover. Cover the tray and place it in the freezer overnight. 

3. Remove the ice cube tray from the freezer the next day. See that the liquid Kool-Aid® has frozen into Kool-Aid® ice. See that the cubes of Kool-Aid® ice are taller than the sides of the tray.

• Click one to continue

• Click one to continue

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Ethan and Rachel measured each material before stirring them together. The students slowly stirred the Kool-Aid® mix and sugar into the glass of water. The Kool-Aid® mix and sugar both seemed to disappear. They thought the amount of matter changed when the Kool-Aid® mix and sugar disappeared. Ethan and Rachel decide to measure the mixture to find out if the amount of matter changed.

     Which statement best explains which tool should be used to show what happens to the amount of  

     matter after the mixture is stirred?

• They should use a scale which will show that the total weight stayed the same. 

• They should use a scale which will show that the total weight decreased. 

• They should use a measuring cup which will show that the total volume stayed the same.

• They should use a measuring cup which will show that the total volume decreased.

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They removed the Kool-Aid® ice from the ice cube tray and measured the total weight of all the   

     Kool-Aid® ice cubes and graphed their data.

Which graph shows the total weight of the liquid Kool-Aid® before it was poured into the tray and the 

      total weight of the lemon ice removed from the tray?

• Graph A

• Graph B

• Graph C

• Graph D

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Ethan and Rachel got distracted by their friends playing outside and left the Kool-Aid® ice on the counter. When they returned the Kool-Aid® ice melted. They then poured all the liquid into a different ice cube tray. The drawing below shows this new tray.

They poured the same amount of Kool-Aid® into each spot in the tray. There was no Kool-Aid leftover. Then they covered the tray and placed it in the freezer overnight. They removed the tray from the freezer the next day.

      Which statement is correct about the new Kool-Aid® ice cubes? 

• Altogether, the new Kool-Aid® ice weighed less than the Kool-Aid® ice made the first time.

• Each new Kool-Aid® ice cube had the same weight as each Kool-Aid® ice cube made the first time.

• Each new Kool-Aid® ice cube contained more matter than each Kool-Aid® ice cube made the first time. 

• Altogether, the new Kool-Aid® ice contained the same amount of matter as the Kool-Aid® ice made the first time.

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