In a science experiment, you are testing two different designs for a paper airplane. You decide to only change the wing shape while keeping all other factors the same. What is this an example of?

When testing a new bridge design model, engineers notice that it collapses under high wind conditions. What should they do next to improve the model?

You are designing a new parachute prototype. To ensure fair testing, you drop each parachute from the same height and only vary the parachute material. What important aspect are you considering?

During an experiment, a team of students is testing different wheel sizes on a toy car to see which size makes it go faster. They keep the weight and shape of the car constant. What are they primarily focusing on?

A team is creating a model of a wind turbine to test its electricity output. They adjust the blade angle while keeping the wind speed and blade size constant. What skill are they demonstrating?

In an experiment, students are testing different types of string to see which holds the most weight before breaking. They ensure the length and thickness of each string are the same. What is this an example of?

A group of students is testing how different shapes of sails affect the speed of a toy boat. They keep the boat's weight and water current constant. What aspect of their experiment are they carefully managing?

During a test to determine the best material for constructing a kite, students change only the type of fabric while keeping the size and frame structure the same. What practice are they implementing?

In a science project, students are evaluating different types of soil to see which is best for growing beans. They plant the same number of beans in each pot and give them equal amounts of water and sunlight, varying only the soil type. What key scientific principle are they following?

In an experiment to determine which paper towel brand absorbs the most water, students use the same size water spill and identical surface material for each test, only changing the towel brand. What scientific skill does this demonstrate?