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6 Simple Ideas for Running a Successful Science Lab

What does a successful science lab experience look like to you?

  • Students working collaboratively in groups? ‘
  • On-topic discussions and idea sharing?
  • Students helping each other to use lab equipment appropriately?
  • Supplies cleaned and put away neatly when finished?

Yes, yes, yes, and yes!

If the above sounds like a DREAM to you, I’m here to tell you that an organized, successful science lab experience for students is not out of reach!

You can spend hours designing the perfect lab experience, but classroom management and science lab preparation is KEY to a smoothly run, successful science lab!

successful science lab middle school classroom
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1. LAB SAFETY EXPECTATIONS

Most (if not all) science teachers pass out a lab safety contract at the beginning of the school year. The purpose of the contract is to outline the behaviors that are expected in the science lab.

While, I think the contract is extremely important to send home for parents and students to read through and sign, let’s be honest….

How many students actually read the contract in its entirety????

That’s where explicit instruction comes in!

Each year before we begin labs, I use use a presentation and notes (aligned with the Flinn Safety Contract) to discuss how the rules on the safety contract apply in our classroom/lab. It is a great way to set the tone for the behaviors that I want to see and what’s not appropriate in lab.


After teaching the rules explicitly, I use these puzzles and posters to check understanding and reinforce the lab safety rules all year long!

science lab safety activities
Lab safety puzzles help to reinforce and check for student understanding.
science lab posters
Lab safety posters reinforce safety ALL YEAR LONG!

Need more lab safety ideas? Check out my post “7 Stupid Simple Ideas to Teach Science Lab Safety.”

2. ORANIZED SUPPLIES ARE KEY TO A SUCCESSFUL SCIENCE LAB

Having your lab supplies neatly organized and in a designated area is key to preparing a science lab that runs smoothly!

I always set out lab supplies for each group in plastic storage trays. Groups can quickly get everything they need for their activity and BONUS they rinse out easily!

Want to make sure you get all of your supplies turned in neatly????

Something I’ve found really helpful is having an “exemplar” tray. This is an extra tray that no one uses. It has all of the materials inside the tray and serves as a model for students to know exactly how the tray should look when they return it at the end of the lab!

Organized supplies are key to a successful science lab in middle school!

3. SET EXPECTATIONS IN THE SCIENCE LAB

It’s tempting to pass out lab sheets, assign groups, and say go!

It can also be a recipe for disaster in the science lab!

During our first lab of the year, I take the time to explicitly discuss each of the behaviors that I expect to see and model what they look like.

We talk about things like:

  • What is the appropriate noise level?
  • How will they move around the lab? Should they remain at their table or with their group the entire time?
  • How will they get your attention when they have a question? Will students raise their hand, walk up to you?
  • How should students get and return supplies?
  • Where and how should materials be disposed at the end of a lab?
These editable science lab activity slides are designed to save you time and energy so you can share the most important information in a visual, easy to understand format.

Posting expectations for successful group work has been a lifesaver!

One thing that has been a huge help is using editable science activity slides on lab days. I can save expectations, copy and tweak slides lab throughout the year!

Plus they are ready to go for next year’s labs!!!

It’s a HUGE time saver!

4. ASSIGN ROLES TO EACH TEAM MEMBER

Want your lab to run like a well-oiled machine? Be sure that each student in a group has a specific role!

science-lab-expectations
These editable science lab activity slides are designed to save you time and energy so you can share the most important information in a visual, easy to understand format.

I love having roles in my labs for many reasons:

  • Roles keep students accountable and build responsibility.
  • They help students learn HOW to work as a team.
  • Roles help all group members feel important and valued.
  • Students take ownership in their group and activity!

Some of my most often used roles include:

Materials Manager – get and return supplies

Facilitator – fairly assign tasks to group members

Safety – gets and returns safety glasses

Director ***– reads instructions and clarifies questions with teacher

This is my favorite one – only the assigned student leaves their station to ask a question or clarify instructions! No more feeling like a mother hen with a line of ducklings following you around the room!

Time Keeper – runs stopwatch

Clean Up Crew – quickly takes care of spills

Recorder – records accurate data for group

Presenter – reports findings to class

5. SCAFFOLD LABS

I once had a principal who used to say “Sometimes you have to slow down in order to speed up.

This couldn’t be more true than beginning of the year science labs!

Take the time in the beginning to scaffold your labs so that students will really begin to understand the process and procedures that you expect as they work together.

Often during the beginning of the year, I’m not ready to let the kids jump right in.

Depending on the level of the students, I feel it’s important to take time to preview the lab as a class, read directions together, and encourage students to make note of important steps in the lab.

In the beginning of the year, I often chunk the lab and talk about it as a class in sections. Groups work on one section as a time. This way I can make sure groups are following all of the procedures and using their roles appropriately.

6. NUMBERED GROUPS, STATIONS, AND SUPPLIES

I’ve saved my favorite tip for last.

Number everything!

  • Groups get assigned a number
  • Station areas get a number
  • Baskets with supplies get numbers

It looks something like this – group two gets their materials from basket two and uses sink/station 2.

Students know exactly where to go and what supplies to use. They are accountable for returning supplies and cleaning their area.

No more looking to see which group didn’t return the thermometer or figuring out who made a mess at the sink!

Instant accountability!

Looking for science lab numbers for tables, grouping, and everything in between? Check out these versatile labels here!


Taking the time to plan and organize a well-run science lab saves so much time and energy in the long run! You will be amazed at how well your students will work together and how much they learn through lab experiences all year long!

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