Water cycle bag experiment supply list for kids

Who this list is for

This water cycle bag experiment supply list is for students making sealed models near a sunny classroom window. The setup uses only water and washable blue liquid food coloring for observation over time.

How to use this list

Give each student one clear resealable freezer bag, a permanent marker, a water cycle diagram printout, an observation calendar, and a pencil. Students can label their bags, use a measuring cup and droppers to add water and a small amount of blue coloring, then seal the bags. Use clear packing tape to secure the bags near the selected sunny window. Keep paper towels close for drips.

Common mistakes

Do not overfill freezer bags, since extra water makes them harder to tape and inspect. Check every seal before placing a bag near the window. Avoid choosing a location that blocks the window or puts bags near electronics. The model is for observing a classroom water cycle, not for handling or drinking the colored water.

What is on this list

You need one clear resealable freezer bag and one permanent marker per student, plus a pitcher of water and blue liquid food coloring. The list also includes clear packing tape, a measuring cup, six droppers, paper towels, water cycle diagram printouts, observation calendars, and pencils. Cross off pencils, tape, measuring tools, or paper towels already on hand.

Before you go

Choose the window area and confirm there is room for every taped bag. Print diagrams and calendars before setup, test the tape, and set out paper towels. Remind students to leave bags sealed and to record observations on the calendar instead of opening the model.