Can You Engineer A Rainbow?
Spring is here! Our STEM Challenge is a great way to invite students to practice the scientific method in a way that will get them excited for the new season.
For this challenge, students must engineer a rainbow with the given materials.
Are you up for the challenge? Can you engineer a rainbow?
What you need per group...
40 Jelly Beans (give as many colors as possible)
Two Paper Plates
1 Cup Water
1 Cup Vinegar
What you need to do...
Start by breaking students up into groups of three to four.
Tell students that the objective of this challenge is to engineer a rainbow out of the materials provided.
Give each group of students the materials needed.
Have students write their group name on their Creator Sheets and ask them which liquid they think will dissolve the jelly bean colors faster, have them talk in their group and write down their prediction.
Tell students to start by arranging 20 jelly beans into a rainbow color pattern around the edge of each paper plate.
Have each group start by pouring the water into the center of one paper plate.
Once all groups have poured the water onto the paper plate have them set their timers.
Have students observe what is happening as the water disperses. They should draw what they are seeing.
A fun way to have students observe what is happening is to have them capture photos as the colors begin to dissolve. This is a great way to have them reference back too.
As soon as all the colors have met the center, have groups stop their timers.
Now have students repeat the same-steps above, but with the vinegar.
Invite students to note any differences they see between the two experiences.
To end, have students write down on their Creator Sheet if their prediction was correct, and ask them if they could go back what would they do differently.
We would love to see you try this STEM Challenge. Share your results with us through social media!