Hello,

the CBSE sample papers for Class 10 Science has been released by CBSE in online mode and is available on the website cbse.academics.nic.in.

I will share with you a link from  where you can the direct links to download the question paper. The article has also discussed about the steps to download the paper and also explained the marking scheme:

https://school.careers360.com/articles/cbse-class-10-science-sample-papers#Previous-Years-CBSE-Class-10-Science-Sample-Papers-2021

Solve as many papers as possible as This helps you to recollect the formulas, gives you an idea on where you have to improve and will also help you to manage time better.

Good Luck