Unit Test: Engineering and Technology

Sarah and Lily are testing their prototype of a paper airplane. It rises up at first but then crashes to the floor.

What should they do next?

Choose the correct answer.

• start over

• redefine the need

• keep better records

• redesign the prototype

Answer explanation

The paper airplane did work to begin with but it didn't stay in the air. The prototype just needs to be adjusted and to try again.

Tags

NGSS.MS-ETS1-1

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NGSS.MS-ETS1-4

What is a constraint?

• a limitation

• what is needed for your solution

• make as good as possible

• a test that doesn't give any advantage to the conditions or objects being tested

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Ms. Meeko wants to know which brand of vanilla ice cream is liked the best in class. Which step should she take to make sure the test is fair?

• Have students try different flavors of ice cream and choose which flavor they like best.

• Have all students try 3 different brands of vanilla ice cream and vote which they like best.

• Give every student a different brand of vanilla ice cream.

• Have one student try each brand of ice cream and choose which he or she liked best.

Answer explanation

This is a test where all brands are tested by all the students. Flavors could mean strawberry, chocolate, etc.

Ryan will build a bookcase for his room. Which decision does NOT need to be made before he starts building?

• how tall the bookcase needs to be

• how wide the bookcase needs to be

• what color should he paint the bookcase

• how many bookshelves should the bookcase have

Answer explanation

The color is not a criteria for building the bookcase, this decision doesn't effect the building process.

What is an example of a fair test?

• All plants receive the same amount of sun, same amount of water, but the soil is different.

• Giving each student a different question from one test.

• Testing the salt levels of different oceans.

• Finding the most popular color shoe in random schools from across the USA.

Answer explanation

This would be a fair test because all plants get the same amount of sun and water, the only thing changing is the type of soil. If all sun, water and soil were exactly the same, you are not testing anything, you are growing a plant the same way.

Biologists want to improve their research with better technology. Which methods will help them meet this need? There are 2 possible answers.

• Use old microscopes to look samples.

• Invest in modern lab equipment.

• Hire students to do more experiments.

• Rearrange the lab to get a new point of view

• Use new pipettes for exact measuring

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-4

The students are playing on the playground on a sunny day. The sun heats up the playground equipment, making it too hot to play on. The students are trying to find a solution so they can play on the playground before recess is over. Which solution should they choose?

• Ask Mrs. Jones to buy new playground equipment that doesn't heat up in the sun.

• Write a letter to the school asking for more shade to be built by the playground.

• Use a jacket to slide or sit on the playground

• Play on the hot playground and ask your teacher to get you an ice pack after

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

You want to make your Pumpkin Elevator on a larger scale. Which tools would you use to pull a really big pumpkin up an elevator?

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Tags

NGSS.MS-ETS1-1

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Laura is making her lunch for tomorrow. Her mom says she needs something that will hold her lunch, not break easily, and small enough to carry in one hand. Which option is best for her to use?

• brown paper bag

• plastic bag

• broken lunchbox

• suitcase

Answer explanation

the brown paper bag breaks when wet, the broken lunchbox is broken. The suitcase is too large.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Sam made a kite out of paper. His kite ripped when it was very windy. He wants to replace the paper of the kite. Which ideas will allow the kite to fly again?

• Glue tiny pieces of paper together.

• cut a piece of cloth into a kite shape

• break glass and then glue the glass into a kite shape

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2