Explore a part of your natural world every day for 20-30 minutes. This can be in the form of observing the natural wold through observations, books of your choice, the newspaper, or online sources approved by your parents. You might also think about something you've wanted to learn about... and then Google it if you have the technology to do so. Or... learn about how to do something in your house (for example... read a manual from a drawer, or read a cook book...). Explore Phet Interactive Simulations for experiments that can't easily be recreated outside of school.
Write every day for 20-30 minutes. Build a science notebook to plan experiments, record observations, track data, and draw pictures of what's happening. Use Google Keep for digital drawings and sharing your observations with classmates.
Practice daily. Khan Academy has lots of fun resources for exploring science in any grade and topic area.