Temporary partition filled up, how to switch to larger one?

My sda1 directory has filled up with everything I've been downloading and installing to get a new machine up and running properly.

It looks like sda6 was created to hold the bulk of everything. Any suggestions on how I switch my future downloads to sda6 instead of sda1?

terminal readout:

df
Filesystem 1K-blocks Used Available Use% Mounted on
udev 3986040 0 3986040 0% /dev
tmpfs 803316 1424 801892 1% /run
/dev/sda1 11468016 11045184 0 100% /
tmpfs 4016572 24980 3991592 1% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 4016572 0 4016572 0% /sys/fs/cgroup
/dev/sda6 707505120 367384 671128676 1% /home
tmpfs 803312 48 803264 1% /run/user/1000

df -h

Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 785M 1.4M 784M 1% /run
/dev/sda1 11G 11G 0 100% /
tmpfs 3.9G 16M 3.9G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sda6 675G 362M 641G 1% /home
tmpfs 785M 48K 785M 1% /run/user/1000