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Glossary term: Axis

Description: An axis is an imaginary line that can be used to define a coordinate system. An axis of rotation is an imaginary line around which something revolves. This could be the axis of rotation of a system such as a galaxy, or a solid body such as an asteroid.

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Term and definition status: This term and its definition have been approved by a research astronomer and a teacher

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".

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Why Do We Have Day and Night?

Why Do We Have Day and Night?

astroEDU educational activity (links to astroEDU website)
Description: Explore day and night of Earth.

License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons

Tags: Tilt
Age Ranges: 6-8 , 8-10 , 10-12
Education Level: Primary , Secondary
Areas of Learning: Modelling , Structured-inquiry learning , Social Research
Costs: Low Cost
Duration: 1 hour 30 mins
Group Size: Group
Skills: Asking questions , Communicating information