Experimental Design and Measurement Concepts

The video tutorial guides students on developing testable science questions and setting up experiments. It emphasizes the importance of choosing a single variable to test and measuring results accurately. The tutorial also explores engineering concepts through building mousetrap cars, highlighting how to manipulate variables like wheel diameter and traction to affect speed and distance. Students are encouraged to specify input variables and output expectations clearly.

What is the first step in developing a testable question from an observation?

• Picking one idea to test

• Conducting an experiment

• Writing a hypothesis

• Measuring results

Why is it important to have at least three data points in an experiment?

• To ensure accuracy

• To avoid errors

• To compare and see trends

• To save time

Which of the following is a way to measure plant health in an experiment?

• Counting leaves

• Measuring plant height

• Observing color

• Checking soil moisture

What is a key consideration when choosing variables for a mousetrap car experiment?

• The measurability of variables

• The type of mousetrap

• The brand of wheels

• The color of the car

What should you be cautious of when building a mousetrap car?

• The color of the mousetrap

• Using too many wheels

• Catching your fingers

• The length of the mousetrap arm