STEM MCAS All Questions through 2023

3.ETS.1.1 A software engineer designed a new version of a video game. The original version of the game and the new version are compared in the table. Select three design criteria the engineer most likely used in designing the new version of the game.

• must cost more to make than the original version
• must allow more players than the original version
• must take longer to design than the original version
• must have more levels of play than the original version
• must have more levels of difficulty than the original version

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6.ETS.1.1

3.ETS.1.1 A dance teacher put up cubbies for students to store their backpacks. The teacher changed the setup of the cubbies, as shown below. What problem was the dance teacher most likely trying to solve by changing the setup of the cubbies?

• Some students did not have cubbies.
• Some students could not reach their cubbies.
• The cubbies were not large enough for the backpacks.
• The cubbies did not allow enough space for the dance floor.

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6.ETS.1.1

6.MS-ETS1-1. A company is designing a new laptop computer. The computer must not exceed a certain weight. Which of the following is the most likely reason to have a weight restriction for the computer?

• to make it easier to test the prototype
• to reduce the cost of making the computer
• to make it easier to transport the computer
• to reduce the cost of building the prototype

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6.ETS.1.1

7.ETS.1.2 Which of the following is the main advantage of solution 2 compared to solution 1?

• The rain garden would take less time to make.
• The rain garden would be less expensive to maintain.
• The rain garden would help prevent erosion of the area.
• The rain garden would move more water across the ground.

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7.ETS.1.2

Students in an engineering class used blocks to build a model house.

They first evaluated four types of blocks using the following criteria:

1. low cost 

2. easy to build with 

3. durable

4. able to stick together

The students scored each type of block from worst to best using the criteria. The results are shown in the decision matrix.

Some students chose to use number cubes to build the model house. Identify two criteria from the decision matrix that the students used to make their choice.

• Low Cost

• Easy to Build With

• Durable

• Able to Stick Together

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7.ETS.1.2

Students in an engineering class used blocks to build a model house.

They first evaluated four types of blocks using the following criteria:

1. low cost 

2. easy to build with 

3. durable

4. able to stick together

The students scored each type of block from worst to best using the criteria. The results are shown in the decision matrix.

Based on the decision matrix, the other students in the class determined there was a better type of block to use for building the model house than the number cubes.

Identify the type of block that is better for building the model house than the number cubes. Include evidence from the decision matrix to explain your reasoning.

• Number Cubes

• Sugar Cubes

• Interlocking Cubes

• Modeling Clay

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7.ETS.1.2

4ETS1-3 The owners of a restaurant with a wooden floor want chairs that slide but do not scratch the floor. The owners test different materials on the bottom of the chair legs. They rate the materials on how well the chairs slide and whether or not they scratch the floor. The results are shown in the table. Which material will best allow the chairs to slide without scratching the floor?

• W
• X
• Y
• Z

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7.ETS.1.2

7.MS-ETS1-4. A medical company designs a new device to measure a person’s vital signs, including heart rate and blood pressure. During the design process, the company produces several prototypes. During which of the following steps is it most appropriate to use a prototype?

• distributing information about the device
• researching how vital signs are measured
• testing whether the device works properly
• determining which vital signs are most important

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7.ETS.1.4

3.ETS.1.4 A fifth-grade class is designing a small fan that will be easy to carry. The students need to select the following parts for the fan: a motor a power supply a switch fan blades What should the students do to test the amount of airflow the fan will produce?

• create a video
• draw a sketch
• construct a prototype
• complete a graphic organizer

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7.ETS.1.4

4.ETS.1.3 An engineer is testing different types of pervious concrete to use in a new parking area. Pervious concrete is a special kind of concrete that can help reduce flooding by allowing rainwater to pass through and soak into the ground. Which of the following should the engineer measure to see how well a type of pervious concrete will reduce flooding?

• the weight of 10 cubic meters of the concrete
• the strength of a 15-centimeter layer of the concrete
• the amount of water needed to mix a cubic meter of the concrete
• the number of liters of water per minute that can move through the concrete

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7.ETS.1.4