5A EoT Quiz on Engineering and Ecosystems

A class wants to build a bridge using popsicle sticks and glue. Which factor should they consider when choosing the design?

• The color of the popsicle sticks

• The bridge's ability to hold weight

• The length of each popsicle stick

• How much glue is left in the bottle

Which of the following designs would best help a solar car move faster?

• A heavier body structure

• Larger solar panels to capture more sunlight

• Smaller wheels for less friction

• Thicker tires to grip the road

When comparing two paper airplane designs, what should you consider?

• The color of the paper used

• How far each airplane flies

• The cost of the paper

• The brand of paper used

Students are designing a boat to hold marbles. What should they compare between different designs?

• How much paint they use on the boat

• How many marbles the boat can hold before sinking

• The number of friends who like the boat design

• The size of the marbles

Which would be the best way to improve a model bridge?

• Make it look more colorful

• Test if using stronger materials helps it hold more weight

• Use fewer materials to save money

• Make the bridge taller

When testing a paper airplane design, which factor should remain constant?

• The person throwing the airplane

• The time of day the test is conducted

• The way the paper is folded

• The color of the airplane

Which is the best way to carry out a fair test on a model boat's performance?

• Test each boat in different water conditions

• Use the same amount of water and measure how long each boat floats

• Test boats made from different materials and compare them

• Change all variables at once to see the overall effect

A group wants to test which plant grows best under different lights. What is one variable they should control?

• The type of soil used

• The number of leaves on each plant

• The color of the pots

• The day they plant the seeds

Why is it important to control variables in an experiment?

• To make sure the experiment is fun

• To know which factor caused the change in the results

• To save time during the experiment

• To ensure everyone participates

If a prototype fails during testing, what should you do?

• Start over without making any notes

• Identify what caused the failure and think of ways to improve it

• Throw the model away

• Assume the design is perfect