Showing results 1 to 20 of 24
Leaves: Extracting PigmentsAdd to list Details
In this fun, hands-on autumn activity, learners experiment to discover whether the colored substances in leaves can be separated from the leaves.
Plant Parts and Their DiseasesAdd to list Details
This exercise is designed to teach young learners the different parts of a plant (root, stems, leaves, flowers, fruit, and seeds), the basic functions of each part, and to show that tiny microscopic o
Find Out How Plants Use Water
In this activity, learners investigate how plants use water. By making the flowers change color, learners see how water moves up the stem to the leaves and the flowers.
Snug as a BugAdd to list Details
In this outdoor activity, learners make models of homes that might protect small animals from the elements, then search living plants for real structures made by small animals.
Lighting Up Celery Stalks
In this activity, learners conduct a series of hands-on experiments that demonstrate how the working of plants' veins, known as capillary action, enables water to travel throughout the length of a pla
Prehistoric Climate Change
In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.
How Does Water Climb a Tree?
In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.
Leaves: Designing Leaf Arrangements on a BranchAdd to list Details
In this hands-on activity, learners investigate the functional design of leaves on a tree.
Discovery Time: Trees
In this activity, young learners (2 years and up) explore tree structure and biology. Tree products are explored by painitng with fruit.
Paper Chromatography with Leaves
In this activity on page 5 of the PDF (Plants—The Green Machines), learners use chromatography to separate and identify pigments within various leaves.
Powdery Mildew Fungi: Classification and EcologyAdd to list Details
In this laboratory exercise, learners will discover how many different plant hosts they can find that are infected by the same genus of a powdery mildew fungus, or how many different genera of powdery
Determining the Amount of Transpiration from a Schoolyard Tree
In this activity, learners calculate the number of milliliters of water a nearby tree transpires per day.
In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.
Tobacco Mosaic VirusAdd to list Details
In this four-part laboratory exercise, learners investigate properties of Tobacco mosaic virus (TMV) including (1) symptoms induced by the virus in susceptible plants at the macroscopic and microscopi
Moisture MakersAdd to list Details
In this outdoor activity, learners compare the moisture released from different kinds of leaves and from different parts of the same leaf, by observing the color change of cobalt chloride paper.
This activity (on pages 24-29) combines science and art to introduce learners to how different animal pollinators spread pollen from one plant to another, and how certain shapes, colors, and smells of
Litter CrittersAdd to list Details
In this outdoor activity, learners use a "litter-critter" wheel to help them identify different animals they find living in a natural litter habitat.
Give or Take?
In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.
Show Your Colors!
In this family or group activity, learners conduct a chromatography experiment to reveal the colors that leaves "hide" under their green pigments.
Leaf LivingAdd to list Details
In this outdoor fall activity, learners find out what living in or under a layer of leaves is like.