Radioactivity

Radioactivity is an essential topic to study in space school.
Mysterious rays and particles were discovered to be emitted from the nuclei of atoms.

What causes radioactivity? How is it measured? Why does it harm us? Can it be used to help us? Does it cause problems for astronauts?

All these questions will be addressed in this exciting space school topic.

Lesson Videos

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Practice Sheets.

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Lesson Videos

Press the forward arrows to go through the lesson videos. Click for the video.

Practice Sheets.

Use the arrows to select your practice sheet. Click when you have found a sheet to do.

 

Click and download. Carefully cut out and play radiation unit jigsaw


Lesson Videos

Press the forward arrows to go through the lesson videos. Click for the video.

Practice Sheets.

Use the arrows to select your practice sheet. Click when you have found a sheet to do.

Lesson Videos

Press the forward arrows to go through the lesson videos. Click for the video.

Practice Sheets.

Use the arrows to select your practice sheet. Click when you have found a sheet to do.

Radioactive isotopes decay in what is called chains to the stable isotope of lead.


Knowing  the half life of these radioactive elements  the ages of ancient objects can be determined.

Radiocarbon dating is one method another is to look for the "time crystals" of zircon which can help find the ages of rocks and thus the planet and solar system itself.