Data Replication

Example: On Sheet1, I have columns A, B & C with data. On Sheet2, I'd like to replicate only columns B & C from Sheet1 without manually copying and pasting and without making every cell on Sheet2 equal Sheet1. Is there any way to achieve this? When new data is entered on Sheet1, it should auto update on Sheet2 as well.

I know I can achieve this by making every cell on Sheet2 equal Sheet1 for columns B & C, but that doesn't seem to be the best way to do this, or is it?