Rainbow Celery Experiment Concepts

Miss Melissa from the Elmwood Place branch presents a STEM activity involving rainbow celery, in partnership with the Greater Cincinnati STEM Collaborative. The project requires clear jars, food coloring, and celery. Participants add different amounts of food coloring to water in jars and place celery stalks in them to observe how the colors travel up the stalks due to capillary action. The experiment demonstrates how varying amounts of food coloring affect the color intensity on the celery. The video concludes with an explanation of the scientific principle behind the experiment and encourages viewers to explore more STEM activities.

What is the main purpose of the Rainbow Celery experiment?

• To test different food colorings

• To learn about plant growth

• To observe how colors mix

• To understand capillary action

Which of the following is NOT a required material for the experiment?

• Clear jars or glasses

• Food coloring

• Soil

• Celery

How many drops of red food coloring did Miss Melissa use?

• Ten

• Eight

• Four

• Six

Why is it important to use a different number of drops for each color?

• To save food coloring

• To use up all the food coloring

• To see how the amount affects color intensity

• To make the experiment faster

What should you do after adding food coloring to the glasses?

• Place the celery in the glasses

• Mix the colors together

• Add more water

• Cover the glasses

What is the purpose of the observation sheet in the experiment?

• To measure the water level

• To note the temperature

• To record the time taken

• To track the number of drops used

Which color was most visible on the celery leaves?

• Green

• Red

• Yellow

• Blue

Why is the yellow color less visible on the celery leaves?

• It is a lighter color

• It mixes with other colors

• It was not used in the experiment

• It evaporates quickly

What scientific process allows the color to travel up the celery stalk?

• Photosynthesis

• Capillary action

• Osmosis

• Diffusion

What part of the celery does the colored water travel through?

• Leaf veins

• Phloem tubes

• Xylem tubes

• Root hairs