Methuselah Tree

Help young scientists connect with nature and learn about trees with a fun life science instructional activity. Heading out into the school yard, children choose a tree to adopt, taking measurements, writing descriptions, and drawing...

Tree rings from North America give a continuous history of El Nino intensity over the last 1,100 years. Scholars learn how scientists use tree rings to create timelines demonstrating variations in weather patterns. The cumulative...

What are the differences between coniferous and deciduous trees? Supplement your tree lessons with a set of activities that has learners describing, naming, comparing, and reading about deciduous and coniferous trees. The activities are...

All trees are not created equal. A set of three wildlife conservation lessons has learners examine the characteristics of individual trees. They look at the life cycle of the tree using a story and reference a field guide to identify...

Engage in a shady activity to practice measurement techniques. Classes venture outside to collect measurements of various trees, using different strategies to measure the height, trunk circumference, width, and crown size. Then they...

Tree rings are slightly thicker on the south side of the tree because it receives more sunlight. Part two in a series of five lessons helps learners analyze tree rings to determine the environmental conditions that caused size...

From stately oaks to towering pines, trees are the largest members of the plant kingdom that most people see. But how do trees get so big? Find out where the mass of a tree comes from with a short video. The narrator presents the topic...

Tree rings help scientists learn about past climates by decoding tree ring patterns. Use this interactive simulation to learn how tree ring patterns tell us about climate conditions in the past.

Learners conduct a simulation to explore how scientists estimate the size of animal populations. They analyze a random sample and then extrapolate those results to a larger population. Additionally, they will apply the principals of...

Open with a discussion on weather and climate and then explain how tree rings can provide scientists with information about the earth's past climate. Pupils analyze graphics of simulated tree rings from various US locations for the...