Writing Effective Experimental Procedures

The video tutorial explains the concept of procedures, emphasizing their importance in science for safety and reliability. It introduces a scenario where a tennis player wants to determine which brand of tennis ball is the bounciest. The tutorial guides viewers through designing a controlled experiment, writing a procedure, and collecting data to answer the question. The process involves setting up a measuring tool, recording the bounce height of different tennis balls, and analyzing the results. The video concludes with a summary of the steps involved in writing effective procedures.

What is the primary purpose of following procedures in science?

• To save time

• To ensure safety and obtain reliable data

• To make experiments more fun

• To impress other scientists

What is the main concern when writing your own procedure in science?

• Using complex vocabulary

• Avoiding unreliable results and injuries

• Ensuring it is easy to understand

• Making it look professional

What sport does Lily play in her free time?

• Tennis

• Soccer

• Basketball

• Baseball

What simplified question does Lily decide to investigate?

• Which tennis ball is the lightest?

• Which tennis ball is the bounciest?

• Which tennis ball is the cheapest?

• Which tennis ball is the most durable?

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS3-1

What is the only variable that changes in Lily's controlled experiment?

• The brand of the tennis ball

• The height from which the ball is dropped

• The surface on which the ball is dropped

• The person dropping the ball

What is the first step in setting up the experiment?

• Dropping the ball

• Recording the data

• Setting up a measuring tool

• Positioning the camera

What should you do if you are unsure of your placements during the experiment?

• Do a practice run

• Skip the step

• Change the experiment

• Ask for help

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NGSS.MS-PS2-5

How should the camera be positioned for the experiment?

• Directly above the ball

• At an angle

• To capture the measuring device clearly

• Far away from the experiment

What should be done after recording the bounce of each ball?

• Stop the experiment

• Switch to a different camera

• Review the videos and measure the height of the first bounce

• Change the height of the drop

Tags

NGSS.MS-PS3-1

What is the final goal of writing a procedure for an experiment?

• To make the experiment look complicated

• To ensure the experiment is repeatable and reliable

• To finish the experiment quickly

• To impress other scientists

Tags

NGSS.MS-PS2-2