How do i shoot 35mm film indoors?

Get a light meter. Your eyesight is no judge of lightlevels because the eye adjusts - like your camera must. In usual indoor lighting with fluorescent tubes, you will be lucky to be able to set at 1/60th second at f2. If your lense is not as wide as F2 then forget it. If you can manage f2.8 and you can get some 1600ASA film then you might get a result setting 1/125 at f2.8 but that would need a lot of lighting!

Use the 400 iso film and keep your aperture open pretty wide. The k1000 only has manual exposure control, so all I can tell you is that 400 iso film with an aperture of around F4 or lower should work good in a well lit room at 1/125 of a second. But without seeing the room myself, I can't be certain. You might want to invest in a light meter.

you'd need to take a light meter to see what level the light is at... personally, i would say to take ISO800 film, just in case... the aperture will depend on the lens you are using and the speed will be determined by the light and the aperture... 1/250th would probably be the slowest you can get away with, without movement being shown... or do you want the movement to be seen???

400 ISO film (higher if you have it ... you;ll want a fast shutter to freeze action on the rink) ... hopefully it's white balanced for the type of lighting in the arena or else you'll end up with a weird tint (unless you compensate with a filter). Settings will depend on lighting ... I guess you don't have a light meter? HArd to say without a meter reading.

How about giving us a little more information, such as the lenses you will be using and (although it is not really necessary) the camera you will be using. How far will you be from the action? Are you simply after stadium shots or closeup shots of the skaters in action? .

The iso 400 film. Don't go higher than f/5.6. And shutter speeds around 1/100. Good luck.

Oh my god...

Use the 400 iso film and keep your aperture open pretty wide. The k1000 only has manual exposure control, so all I can tell you is that 400 iso film with an aperture of around F4 or lower should work good in a well lit room at 1/125 of a second. But without seeing the room myself, I can't be certain. You might want to invest in a light meter.

400 ISO film (higher if you have it ... you;ll want a fast shutter to freeze action on the rink) ... hopefully it's white balanced for the type of lighting in the arena or else you'll end up with a weird tint (unless you compensate with a filter). Settings will depend on lighting ... I guess you don't have a light meter? HArd to say without a meter reading.