Go to minimaths.co.uk
Click on year 6 arithmetic practice papers
Scroll down to week 16 and open
Write down the questions (or print) and solve them
Answers are available as 'days' under the answers link
http://www.sciencekids.co.nz/light.html
https://www.optics4kids.org/classroom-activities
Loads of ideas here!
https://kids.kiddle.co/Charles_Darwin
http://www.sciencekids.co.nz/sciencefacts/scientists/charlesdarwin.html
https://www.bbc.co.uk/teach/charles-darwin-evolution-and-the-story-of-our-species/z7rvxyc
https://kids.britannica.com/kids/article/Charles-Darwin/353038
https://www.dkfindout.com/uk/science/famous-scientists/charles-darwin/
https://www.bbc.co.uk/cbbc/watch/horrible-histories-song-darwin-natural-selection-song