To improve your Science knowledge you can always visit
KS1
https://www.bbc.co.uk/bitesize/subjects/z6svr82
KS2
https://www.bbc.co.uk/bitesize/subjects/z2pfb9q
https://www.ducksters.com/science/
If you want to visit a museum to learn about Science why not try these days out.
https://www.southyorkshireaircraftmuseum.org.uk/ for things to with flight and aviation.
https://www.visitmagna.co.uk/ for air, wind, earth and fire knowledge.
https://education.eureka.org.uk/ for the body, sound and the digital world.
https://spacecentre.co.uk/ for space
Experiments to watch and to even try but make sure you ask an adult first!
https://www.youtube.com/watch?v=w1CKpQu89pU