You can get Bihar board 10th science model paper by clicking the mentioned below link. You need to click on the mentioned below link and then a new display will appear you need to scroll down and you will see a list full of links for a downloading different model papers of 10th board. These papers include:

• Maithili
• Mathematics
• science
• social science
• English
• Bhojpuri
• commerce
• economics
• Hindi
• home science
• Urdu

However we don't have 2022 model papers, but I have provided 2020 and 2019 model papers link which are very important for practicing for the Bihar State Board 10th class

https://www.google.com/url?sa=t&source=web&rct=j&url=https://school.careers360.com/download/sample-papers/bihar-board-10th-science-model-paper-2020&ved=2ahUKEwjIxdTpmfr0AhUJFogKHQwYCIQQFnoECAQQAQ&usg=AOvVaw06UIMiybzs5qmuxEgxIxvy