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The Science ClipArt collection offers 7,165 illustrations related to astronomy, biology, chemistry, earth science, and physics. The illustrations are arranged in 103 galleries.

In this article, we'll examine scientific ideas about the origin of life on Earth. The when of life's origins (3.53.53, point, 5 billion years ago or more) is well-supported by fossils and radiometric dating. But the how is much less understood. In comparison to the central dogma or the theory of evolution, hypotheses about life's origins are much more...hypothetical. No one is sure which hypothesis is correct - or if the correct hypothesis is still out there, waiting to be discovered.

The Innovative Technology in Science Inquiry project engages students in STEM activities through the integrated use of technologies that include modeling, computational thinking, and real-time data acquisition. This comprehensive project will assist teachers in preparing diverse students for STEM careers by engaging them in exciting, inquiry-based science projects.

An "excuse me" might be nice. Researchers have found that Earth belches a potent greenhouse gas known as tetrafluoromethane (CF4) during earthquakes and other tectonic events. The emissions likely aren't making a significant contribution to global warming, but the findings could change the way scientists model future climate scenarios. They also complicate the use of CF4 as a way to measure how the continents and climate have changed over millennia.

This case study teaches students about allopatric speciation through an investigation of the benthic and limnetic sticklebacks of Paxton Lake, which are among the youngest species on Earth, diverging from each other after the Pleistocene glaciers melted and the Gulf Islands formed. Researchers at the University of British Columbia have carried out a variety of fascinating studies on these hardy little fish. Results from this research (formatted as data sheets included in the teaching notes) are provided to students who design experiments and then compare actual data to investigate why benthic and limnetic sticklebacks seldom interbreed in Paxton Lake. Developed for a first-year biology course for majors organized around the general theme of evolution and the history of life on Earth, this case study is an updated version of another case in the collection, "Something's Fishy in Paxton Lake" (Sharp, 2001). The current version is especially suited for a flipped classroom in which students prepare for class ahead of time with a reading assignment that also involves the viewing of a video by the case authors that introduces the mechanisms of allopatric speciation.

American Museum of Natural History Explore the natural world with Science Bulletins; our documentary Feature Stories, Data Visualizations, and News updates focus on recent discoveries and new technologies in astrophysics, Earth science, biodiversity, and human health and evolution.

View slides and interactive graphics from the Earth Lab: Degrees of Change exhibit at the Marian Koshland Science Museum of the National Academy of Sciences.

FREE online interactive lessons based around unanswered questions in Earth and Space Science to help students craft cogent scientific arguments based on the evidence.

FREE online interactive lessons based around unanswered questions in Earth and Space Science to help students craft cogent scientific arguments based on the evidence.

This laborious process did not result from any lack of talent on Buell's part - he's revered among illustrators. Rather, he faced a challenging task: drawing something no one ever had seen or ever could see. In addition to making science visually appealing and easier to understand, this is what science illustrators do. They make the invisible visible.

What are the best science websites for your K-12 lessons? Here are the ones I turn to again and again.

This case study is designed to help students learn about the ecosystem services of Earth (Biosphere 1) by examining the challenges faced by the designers who tried to replicate its components in Biosphere 2. In 1991, four men and four women entered Biosphere 2, a man-made closed ecological system in Arizona, to see if eight biospherians could be sustained by this miniature version of Biosphere 1. The project succeeded in producing most of the food needed, but required additional oxygen before the end of the two-year experiment. After an introduction to Biosphere 2, students learn about the four main types of ecosystem services and discuss how Biosphere 2 might provide these services. At the end of the case, students calculate their own ecological footprint, demonstrating how humans are overreaching the ecosystem services of Biosphere 1, just as the biospherians could not be sustained by the ecosystem services included in Biosphere 2. The case is suitable for an introductory undergraduate course in biology, ecology, or environmental science.

Brief interactives for an array of topics in math and throughout the sciences.

Post the link to the Science News article "Life on Earth may have begun in hostile hot springs" to your virtual classroom. Ask students to read the article for homework and prepare for online class by answering the first question. Before the class meets, provide the students with the links to all articles they will need for class. Class discussion can be conducted via Zoom; the research and recipe-building components can be conducted in breakout rooms.

The data comes from the open Tree of Life Project, a collaboration among biologists and other scientists around the world. It contains decades' worth of work in phylogeny, evolutionary history of and relationships among groups of organisms. The project is about a year away from a complete tree of all life, Rosindell said. He wanted a system in place that could visualize it as soon as it's ready. Right now, OneZoom only contains mammals, but that's still more than 5,000 species, all correlated with each other and color-coded according to their threat levels. Rosindell has big plans for the rest, and he even wants to build a searchable app for smartphones, showcasing the history and relationships between all life on Earth.

A team of scientists, in a groundbreaking analysis of data from hundreds of sources, has concluded that humans are on the verge of causing unprecedented damage to the oceans and the animals living in them. "We may be sitting on a precipice of a major extinction event," said Douglas J. McCauley, an ecologist at the University of California, Santa Barbara, and an author of the new research, which was published on Thursday in the journal Science.

This is a 3.5 minute HD dramatic video choreographed to powerful music, which introduces the viewer to the Origins of LIFE on Earth. It is designed as a motivational "trailer" to be shown by Biology and Life Science teachers in middle and high school and college as a visual "Introduction" to the topic of how life began.

Researchers have now created the first molecules of RNA, DNA's singled-stranded relative, that are capable of copying almost any other RNAs. The discovery bolsters the widely held view among researchers who study the origin of life that RNA likely preceded DNA as the central genetic storehouse of information in the earliest cells some 4 billion years ago.

"A short 3.6 minute visually stunning introductory trailer choreographed to powerful music that introduces the viewer/student to the characteristics that all life on Earth shares. I made this for use by teachers of Biology and the Life Sciences as a motivational introduction to the wonders of life and the amazing characteristics that we all possess. As a High School Biology teacher myself, I have found these videos a great way to capture student interest immediately."

Index page for all of Mr. Anderson's most excellent and easy to understand videos for every biology, chemistry, A&P, earth science, physics, and statistics topic imaginable.

The Climate Education Week Toolkit is a free, easy-to-use, ready-to-go resource with everything you need. The Toolkit includes a week's worth of lesson plans, activities, and contests for K-12 students that meet Next Generation Science Standards and Common Core. Each day covers a different theme related to climate change with two highlighted activities handpicked by Earth Day Network for your use. This cross-disciplinary resource has a range of activities from an energy conservation action plan to reading and discussing Rachel Carson's Silent Spring, with the goal being to educate and engage your students on climate change.