Science
Technology
Engineering
Math
STEM Challenge
100

What force causes objects to fall toward Earth?

Gravity

100

What does CPU stand for?

Central Processing Unit

100

What is a prototype?

A model or early version of a design.

100

A robot travels 20 feet in 5 seconds. What is its speed?

4 feet per second

100

You need to build the tallest tower possible using 20 straws. what should you do before you start building?

Make a plan/design

200

If you put an ice cube in the sun, what type of energy causes it to melt?

Thermal Energy

200

What is an algorithm?

A set of steps or instructions used to solve a problem or complete a task.

200

What do engineers do when a design doesn't work?

They make changes and test it again.

200

What is 25% of 80?

20

200

Two paper airplanes are made from the same type of paper. One flies farther. What could be the reason?

The shape or design of the airplane is different.

300

A plant is not getting enough sunlight. What process will be affected the most?

Photosynthesis

300

Why is it important to use a strong password?

To help protect your accounts and information.

300

Why are triangles often used when building bridges and towers?

They provide strength and stability.

300

A rectangle is 12 inches long and 5 inches wide. What is its area?

60 square inches

300

Your bridge holds 20 pounds but needs to hold 30 pounds. What could you change?

Strengthen the bridge, change the design, or add supports.

400

Two objects  have the same size, but one weighs more. Which object has greater density?

The heavier object

400

You receive a message from someone you don't know asking for your password. What should you do?

Don't give them the password and report or delete the message.

400

Your tower keeps falling over. What is one change you could make to improve it?

Make the base wider or strengthen the structure.

400

A drone travels 3 miles in 6 minutes. At the same rate, how far will it travel in 12 minutes?

6 miles

400

Your first design doesn't work. Should you throw it away and start completely over? Why or why not?

No. You should figure out what went wrong and improve the design.

500

Why does a metal spoon usually feel colder than a wooden spoon when both have been sitting in the same room?

Metal transfers thermal energy away from your hand faster than wood.

500

A computer program isn't producing the correct answer. What is one thing a programmer could do to find the problem?

Check the code/instructions for an error.

500

Your group has a limited amount of materials to build a bridge. Why is it important to plan before you start building?

So you can use your materials wisely and create a design that meets the challenge.

500

A student tests a paper airplane five times and get these distances: 12 ft, 15 ft, 10 ft, and 15 ft. What is the average distance?

13 feet

500

Your team needs to build a boat out of aluminum foil that holds the most pennies. What could you change to improve your design?

The shape, size, or placement of the foil and pennies.