This activity is a field investigation where students collect leaf samples to be observed and compared monthly.

This activity is a field investigation where students collect leaf samples to be observed and compared monthly.

This activity is a classroom investigation where students gather descriptive data on two different plants with a partner, and on other plants during a classroom discussion.They will then interpret their findings, and classify the plants, if applicable, into monocots or dicots.

This field and classroom activity involves identification of similarities, differences, advantages, and disadvantages in survival, method of locomotion, food acquisition, and reproduction in three fresh-water microbes.

This lab activity demonstrates the difference between stabilizing and directional natural selection using two separate populations of sunflower seeds.

This is an investigative lab to provide students with an opportunity to practice observation skills and develop cooperative group proceedures.

In this inquiry lab, students design and conduct simple experiments using elodea and Bromothymol blue to determine whether plants consume or release carbon dioxide in the process of photosynthesis. Students will record their data which will be used to conclude whether carbon dioxide was consumed or released by the elodea.

This activity is a field investigation where students use a dichotomous key to properly identify trees in our schools nature center.

This activity is a classroom experiment where students gather data on which foods contain starch. They use observation and develop their own hypothesis to create a question they would like to discover about starches.

During the leaf activities the students will compare, contrast, classify, categorize, identify attributes, learn art techniques and learn about the importance of trees.

This activity is a field investigation where students gather information on a tree. Based on the information gathered and student interest, students will develop and carry out an investigation.

This activity is a field investigation where students explore different types of trees and identify them using leaves and classification tools.

In this biology investigation, students will make observations of the growth of bean seeds to determine what plants need to live and grow in a healthy way.

This activity is based on observations of mealworms form a question and make decisions as to the design of an investagation. Students use data collected to make a conclusion to their questions.

In this video segment from Greater Boston, learn about conflicting theories regarding the cause of autism.

Spreadsheets Across Curriculum module/Introductory chemistry course. Students build spreadsheets to examine unit conversions between the metric and English systems. Spreadsheet level: Beginner.

This activity is designed to further develop students' understanding of the characteristics of insects. Students will be sorting insects from non-insects that they themselves find in a sample of pond water.

This Java interactive tool can be used to create dynamic drawings on an isometric dot grid, and to explore volume, surface area, and congruence concepts. Users can draw figures using edges, faces, or cubes and can shift, rotate, color, decompose, and view figures in 2‑D or 3‑D with this applet. Instructions on using and exploring with the tool are included on the page. A related multi-lesson unit from Illuminations for middle school students is linked to the side.

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

Students learn about complex networks and how to use graphs to represent them. They also learn that graph theory is a useful part of mathematics for studying complex networks in diverse applications of science and engineering, including neural networks in the brain, biochemical reaction networks in cells, communication networks, such as the internet, and social networks. Students are also introduced to random processes on networks. An illustrative example shows how a random process can be used to represent the spread of an infectious disease, such as the flu, on a social network of students, and demonstrates how scientists and engineers use mathematics and computers to model and simulate random processes on complex networks for the purposes of learning more about our world and creating solutions to improve our health, happiness and safety.