Parts of a plant: we did this in Playschool a few weeks ago with kids ages 1-5 and took our time talking about the various things a plant needs to grow as we added each one and then our labels. We added a label for the stem, one for the leaf, and the petals. For the flower petals we used cupcake liners, a great activity for kids especially preschool age that's interactive, educational, and fun! A great precursor to planting real flowers or plants in the classroom or home as we did yesterday!
Greenhouses. Ziplock bag, wet cotton balls and seeds. You can see all the plant parts. This has a printable for the "house". Although I think I might just tape the bags to the window and have a lot of them.
This resource could be incorporated into a plant unit in kindergarten or 1st grade. This is a diagram that students create to show the different parts of a plant. Students will create their plant and correctly label each part. I will use this as an activity to assess students to determine if they know the parts of the plants. #etlobest