Colorado State University
Gardening & Horticulture in Denver: Gardening With Children
The section on plant projects for kids has lots of hands-on ideas for studying plant biology. Activities are included for stages from seed germination to growth. Geared more to the younger student.
Other
Hans' Paleobotany Pages
A good site discussing the history of fossil plants, including oldest land plants and links to related topics.
Other
Plant Fossils of West Virginia
Has great diagrams of plant fossils as well as some general information on prehistoric plants.
Other
Louisiana Petrified Wood
A detailed article about the petrified wood which is found in Louisiana.
Other
42 Explore: Trees and Forests
This is a site with links covering multiple areas of tree and plant study. Great illustrations and information.
Other
Plant Physiology: Mineral Requirements
This page discusses the mineral requirments needed for plants to grow successfully. The website focuses on the soil and the types of soil that creates a loam for individual plant types.
Other
Catch the Science Bug: Plant Observation Investigation [Pdf]
Write down your observations about the different types of plants or flowers you see in their natural habit then record them on the data collection sheet.
Other
Cartage: Plant Structure and Growth
A comprehensive resource for information about plant structure to plant reproduction characteristics. Site covers broad topics on how plants function.
PBS
Pbs Kids: Plum Landing: Sniffing Safari
This PBS Kids activity is an extension of a Plum Landing episode featuring outdoor scents. Students will learn basic information about outdoor scents; students will also use online drawing tools to design an outdoor scene with...
Middle School Science
Middle School Science: Observing Tree Rings
In the lab experiment site, you will determine the age of a tree, see if you can determine what years had more precipitation than others, and label the cross section of a tree: bark, heartwood, sapwood, and rings.
Other
Fossil Fun: Plant Fossils
A brief site that explains how plant fossils let us know what the weather and temperature was long ago. Text is supplemented with photographs.
Channel 4 Learning
4 Learning: Science Essentials: Interdependence and Adaptation
Article describes the importance of green plants and the ideal conditions they need to produce the food and oxygen people need to live.
University of Hamburg
University of Hamburg: Osmosis
Why does a plant wilt? It all has to do with turgor pressure. Find out more about turgor pressure and osmosis.
Center of Science and Industry
Cosi Columbus: Mighty Seeds
Learn about the process of germination in this hands-on science experiment. Includes full list of materials, procedures, and scientific explanation of why plants can survive in a variety of environments.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Ciencias, Geografia E Historia
These are interactive activities developed for the area of natural science.
New York Times
New York Times: Crossword Puzzle: Animals Life Cycle
The New York Times Learning Network has developed interactive & printable crossword puzzles. The theme of this puzzle is Animals: Life Cycle.