LabsLand Teach lessons

• Radioactivity
• 40 min
• Ages 15-17 / introductory upper secondary
• English

Radioactivity 1/2: counts and distance

Students use repeated measurements from the remote lab to investigate how the detected count changes as distance increases and whether a straight line describes the pattern well.

• Distinguish detector counts from personal radiation dose.
• Use three repeats and a mean to compare measurements that vary.

Includes student questions and response prompts.

• Radioactivity
• 55 min
• Ages 15-17 / introductory upper secondary
• English

Radioactivity 2/2: shielding and penetration

Students compare seven remote-lab configurations, calculate the percentage of the detected count that remains, and use the pattern to identify evidence consistent with alpha, beta, and gamma radiation.

• Compare absorbers while keeping distance, duration, and number of repeats constant.
• Calculate the percentage of the detected count that remains relative to the control for the same source.

Includes student questions and response prompts.