There are several insects that can cause damage to trees and wooden structures. Carpenter ants have attacked this truss by chewing small holes in it. Termites also chew holes in wood and will commonly infest houses. They weaken the structure of the house by chewing the wooden beams.
X-ray diffraction of DNA
Rosalind Franklin took X-ray photographs of DNA. These photos were later used by Watson and Crick to further characterize the structure of DNA.
Zebrafish embryo development
Early development of Danio eggs note the internal structure and the cluster of eggs (note the large yolk attached to the two-cell egg). The cells all divide at the same time. Within two days this mass of dividing cells will take on the shape of a zebrafish larvae.
USGS Bedform Sedimentology
This site presents a collection of photographs, short movies, classifications, and computer-generated images for identifying various types of bedforms. Viewing of movies and 3D dynamic computer-modeled bedforms allows students to observe the creation, internal structure, and migration of bedforms through time. Photographs depict these processes in the real world. In addition, software for simulating ripple and dune bedforms and crossbedding is available for a free download. The site also feature
Organic Chemistry I
An intensive survey of structure, reactions and synthesis of the main classes of organic compounds. Laboratory illustrates the preparation, purification and identification of organic compounds by classical and instrumental methods.
Organic Chemistry II
An intensive survey of structure, reactions and synthesis of the main classes of organic compounds. Laboratory illustrates the preparation, purification, and identification of organic compounds by classical and instrumental methods.
Dissolved Oxygen and Biochemical Oxygen Demand
This EPA website provides general information about dissolved oxygen, including what it is, sampling and equipment considerations, and sampling and analysis protocols. The site also features a chart of dissolved oxygen solubility as a function of temperature.
ABC's of Nuclear Science and Technology
Introduces the object that contains almost all of the mass in the universe, the atomic nucleus. Antimatter, beta rays, fission and fusion, the structure of the atomic nucleus, how elements on the earth were produced, how we use the nucleus in every day life, and the effects of radiation in the environment are among the topics. The site includes nearly a dozen experiments that can be done in chemistry and physics classes, along with A Teacher's Guide to the Nuclear Science and Technology Wall Cha
SIMply Prairie: Prairie Advocates
In this multidisciplinary, inquiry-based project students prepare a plan and give a persuasive oral presentation to create a reconstructed prairie based on research. Teachers can use this unit with their students to justify enlarging or keeping an existing prairie. This project can serve as the organizing structure for prairie study where materials from units such as The Prairie – Our Heartland become research materials. It can be used in conjunction with the unit which is taught best in the f
Histology: Study of Cells, Tissues and Organs
This course presents the microscopic structure of cells, tissues, and organs, with emphasis on the correlation of structure and function. Vignettes of clinical and pathologic significance are also presented.
Introduction to Modern Physics
The course covers principles and concepts of Special and General Relativity; origins of Quantum Mechanics; quantum structure of atoms, molecules, solids; applications to lasers and microelectronics; nuclear and particle physics; and cosmology.
The Squeeze is On
Students will learn about the force of compression and how it acts on structural components through a hands-on group project. Using everyday products such as paper, toothpicks, and tape they will construct a structure that will support the weight of a cinder block for 30 sec.
We all know that it takes energy to provide us with the basics of shelter: heating, cooling, lighting, electricity, sanitation and cooking. To create energy-efficient housing that is practical for people to use every day requires combining many smaller systems that each perform a function well, and ...
Design Weather Instruments using LEGO Sensors
Students will design and create a LEGO structure that will house and protect a temperature sensor. They will leave the structure in a safe spot and check the temperature regularly and chart it.
Mixtures and Solutions
This unit covers introductory concepts of mixtures and solutions. Students think about how mixtures and solutions, and atoms and molecules can influence new technologies developed by engineers. The first lesson explores the fundamentals of atoms and their structure. The building blocks of matter (protons, electrons, neutrons) are covered in detail. The next lesson examines the properties of elements and the periodic table one method of organization for the elements. The concepts of physical and
Compare Human-made Objects with Natural Objects
In small groups, students will experiment and observe the similarities and differences between human-made objects and nature. The students will compare the function and structure of hollow bones with drinking straws, bird beaks, tool pliers, bat wings and airplane wings. A classroom discussion can be held to discuss similarities and differences that were observed along with follow up assessment activities such as journal writing and Venn diagrams.
Designing an Earth System Course
This Starting Point module describes the process of putting together a course in Earth System Science course. Users will find information on what an ESS course is, why this approach is useful and how to actually create the class. This module supports faculty efforts to structure Earth system science ...
Evaluating How Our Students Think and Learn: Research Results from the Trenches
This PowerPoint presentation addresses research on the thinking and learning processes of students and how increased knowledge of these processes can be used to structure lectures in a manner that will change the way students learn. It covers methods for course redesign, classroom assessment techniques, ...
Design of Comparative Experiments
This book develops a coherent framework for thinking about factors and their relationships, including the use of Hasse diagrams. These are used to elucidate structure, calculate degrees of freedom and allocate treatment subspaces to appropriate strata.
Mathematical Modeling Using Real Radioactivity Data
In this lab, you can explore how radioactive radiation changes as a function of distance. This curriculum sets the Radioactivity iLab in the context of mathematics curriculum, asking you to consider: What type of mathematical function governs the intensity of radiation over distance?