To access a range of science videos, virtual investigations and more, use the link below. Click on Key Stage 1 for Y1 and 2 or Key Stage 2 for Y3,4,5 or 6.
BBC Bitesize Science has a range of resources in line with the national curriculum. 1st Level is the equivalent of KS1 (5-7) and 2nd Level is the equivalent of KS2 (8-11). Activities are split into curriculum area, such as The Senses and Body Systems. 
There are links to quizzes, learning projects and many more cool activities, such as building bug hotels and bringing nature indoors.