I recommended the following link

https://www.nationalgeographic.com/science/space/dark-matter/

Best Regards Mila Ilieva

I need it for school presentation.

Thank you, Nour Shakir

I recommended the following link

https://www.nationalgeographic.com/science/space/dark-matter/

Best Regards Mila Ilieva

Thank you, dear Osama!

Following

• Dark matter is called dark because it does not appear to interact with observable electromagnetic radiation, such as light, and is thus invisible to the entire electromagnetic spectrum, making it extremely difficult to detect using usual astronomical equipment.
• Dark energy is the name given to the force that is believed to be making the universe larger. Distant galaxies appear to be moving away from us at high speed: the idea is that the universe is getting bigger and has been since the Big Bang.

Thank you, dear Friends!