Getting stuck with grunt work in first year undergraduate research internships
You need to talk to your advisers/supervisors/group leader about whether or not you can actually be involved in some research. The work you're describing is more aligned with a technician or lab assistant, which if you're not being paid for could be seen as a waste of your time depending on how you view it.

Be realistic though. You are a first year undergraduate and highly inexperienced working in a lab. They may have assumed that you've never held a pipette before in your life so trusting you to doing research may come with some hesitancy, especially since there will be an inevitable cost to you working there.

You essentially have three options.

1. Talk to the people you're working with to see if you can do more than you're currently doing.

2. Look elsewhere to find a position that more closely aligns with what you're looking to get out of research experience.

3. Wait until you're further down your undergraduate to find a more suitable role.

You're not a full time employee or even a part-time employee. You have no obligation to stay with them if it's not what you're looking for. Communicate with them in a polite manner and say that if they cannot provide what you're looking for then you don't want to continue.