Alonso-Stepanova Laboratory

“School backyard”

Module A “Wilting of detached leaves and flowers” (Level of difficulty *)

Question: What happens to a plant without of water?

Materials you will need:

•2 empty rinsed plastic yogurt containers or single-use cups (any size)

•A zip-lock bag


•Water (tap water is fine)

•Leaves or flowers of indoor or outdoor plants


•Using scissors, carefully cut 3 or more green leaves or fresh flowers from a plant

•Place one leaf or flower in a cup filled with water

•Place the second leaf or flower in an empty cup

•Place the third leaf or flower in a zip-lock bag and tightly close it

•Put all three leaves/flowers in a bright sunny place (a windowsill)

•Observe what happens to the plant parts over time

Helpful hints and suggestions:

•When you collect leaves or flowers, it is a good idea to cut them with a stalk (have an adult help you if you are unsure)

•You may want to put multiple leaves or flowers in the same cup or plastic bag

Expected results:

•Leaves and flowers kept without water will wilt fast (within hours)

•Leaves and flowers placed in a cup of water will survive the longest

•Leaves and flowers placed in a plastic bag will wilt slowly

Follow-up questions:

•Why do you think plants left without water wilt?

•Why do you think plants kept in a plastic bag wilt slower than the ones in an open dry cup?

•What happens if you forget to water your houseplants?

•Why do you think plants need water?

- Module 1Alonso-Stepanova_Module_1.htmlAlonso-Stepanova_Module_1.htmlshapeimage_4_link_0
- Module 2Alonso-Stepanova_Module_2.htmlAlonso-Stepanova_Module_2.htmlshapeimage_5_link_0
- Module 3Alonso-Stepanova_Module_3.htmlAlonso-Stepanova_Module_3.htmlshapeimage_6_link_0
- Module 4Alonso-Stepanova_Module_4.htmlAlonso-Stepanova_Module_4.htmlshapeimage_7_link_0
- Module 5Alonso-Stepanova_Module_5.htmlAlonso-Stepanova_Module_5.htmlshapeimage_8_link_0
- Module 6Alonso-Stepanova_Module_6.htmlAlonso-Stepanova_Module_6.htmlshapeimage_9_link_0
- Module 7Alonso-Stepanova_Module_7.htmlAlonso-Stepanova_Module_7.htmlshapeimage_10_link_0
- Module 8Alonso-Stepanova_Module_8.htmlAlonso-Stepanova_Module_8.htmlshapeimage_11_link_0
- Module 9Alonso-Stepanova_Module_9.htmlAlonso-Stepanova_Module_9.htmlshapeimage_12_link_0
- Module BAlonso-Stepanova_Module_B.htmlAlonso-Stepanova_Module_B.htmlshapeimage_13_link_0
- Module CAlonso-Stepanova_Module_C.htmlAlonso-Stepanova_Module_C.htmlshapeimage_14_link_0
- Module DAlonso-Stepanova_Module_E.htmlAlonso-Stepanova_Module_D.htmlshapeimage_15_link_0
- Module EAlonso-Stepanova_Module_E.htmlAlonso-Stepanova_Module_E.htmlshapeimage_16_link_0


School yard or Home

School yard or Home