Kids Encyclopedia -- Facts Space debris facts for kids:
https://kids.kiddle.co/Space_debris
Time for Kids -- Space Junk:
https://www.timeforkids.com/g34/space-junk/?rl=en-710
Kids Earth -- What is Space Junk?:
https://kids.earth.org/space/what-is-space-junk/
NASA -- Where Do Old Satellites Go When They Die?
https://spaceplace.nasa.gov/spacecraft-graveyard/en/
What is space junk and why is it a problem?
https://www.nhm.ac.uk/discover/what-is-space-junk-and-why-is-it-a-problem.html
Smithsonian Magazine -- The Astronomical Problem of Space Junk:
https://www.smithsonianmag.com/science-nature/the-astronomical-problem-of-space-junk-180987782/
Earth. Org -- Explainer: What Is Space Junk and How Does It Affect the Environment?
https://earth.org/space-junk-what-is-it-what-can-we-do-about-it/
Space junk is piling up fast - can we still clean it up?
https://www.earth.com/news/space-junk-is-piling-up-fast-can-we-still-clean-it-up/
What is space junk?
https://www.mckinsey.com/featured-insights/mckinsey-explainers/what-is-space-jun
What is SPACE JUNK? EASY explanation!
https://clipwise.com/watch/da6c744d-2959-4b21-b2ed-ab5f90a3b7c9