This is a growing bundle of my Space Science Claim Evidence Reasoning activities.
CERs are great for getting students to think critically about science and to be able to explain what is happening and why. I also have a CER Foldable and Activity, Take Home Science activities with included CERs and a CER Bulletin Board (included!) available in my store. I use them in my own classroom weekly. I have started to include a 4th version in the CERs that has a little more scaffolding help for your students.
Order of the Planets
Predicting Moon Phases
Sun Moon Earth
CER Bulletin Board and Sort Activity (Bonus!)