Explore December 9 in science history! Discover Douglas Engelbart’s groundbreaking 1968 computer demonstration, the 1979 certification of smallpox eradication, and Fritz Haber’s role in developing industrial ammonia synthesis. These events connect computing, biology, chemistry, agriculture, and scientific ethics, with practical discussion ideas for middle and high school science classrooms.

What connects recorded sound, gas laws and the International Space Station? Explore three science milestones from December 6: Thomas Edison’s phonograph, chemist Joseph Louis Gay-Lussac, and the first connection of ISS modules in orbit. These stories make useful classroom starters for physics, chemistry and engineering. The December Science on This Day resource includes 132 STEM events, interactive HTML, editable slides, a filterable spreadsheet and printable PDF.

Explore December 3 in science history: the first human-to-human heart transplant, Pioneer 10’s historic Jupiter flyby, and the birth of X-ray spectroscopy pioneer Manne Siegbahn. Connect biology, space exploration and atomic physics with practical classroom discussion ideas. The December Science on This Day calendar features 132 STEM events in interactive HTML, slides, spreadsheet and printable PDF formats.

Explore November 23 in science history: Johannes Diderik van der Waals and real gases, Henry Moseley’s X-ray experiments and the periodic table, and an early coin-operated phonograph that helped bring recorded music to public spaces. Includes classroom discussion ideas and more STEM milestones for November and December. Discover the November and December Science on This Day resources for ready-to-use science starters.

Explore November 19 science history through Mikhail Lomonosov and conservation of matter, Nobel Prize-winning chemist Yuan Tseh Lee’s research into molecular reactions, and Apollo 12’s lunar landing near Surveyor 3. Includes practical classroom ideas for chemistry, reaction rates, materials science and space exploration, plus more daily STEM stories in The Teaching Astrophysicist’s November Science on This Day resource set.

Explore Science on This Day for 14 November with Leibniz’s contributions to calculus, Leo Baekeland’s development of Bakelite, and the volcanic formation of Surtsey. Find practical middle and high school activities connecting mathematics, polymers, materials science, geology and ecological succession. Discover 109 November science history stories in four classroom-ready formats.

Need reliable emergency sub plans for middle school chemistry? This practical guide explains how to build ready-to-use substitute lessons using chemistry reading passages, anchor charts, data analysis and research projects. Explore emergency chemistry activities for atoms, bonding, reactions, acids and bases, catalysts, green chemistry and more, with adaptations for upper elementary and high school science.

Strengthen scientific literacy with this comprehensive high school chemistry vocabulary guide. Explore essential chemistry terms covering atoms, bonding, reactions, the periodic table, acids and bases, stoichiometry, thermochemistry, and organic chemistry. Perfect for chemistry teachers seeking classroom-ready spelling lists, academic vocabulary support, reading comprehension resources, and engaging science reading passages that build critical thinking and STEM success.

Build scientific literacy with this comprehensive middle school chemistry vocabulary guide. Explore essential science words related to atoms, molecules, elements, reactions, mixtures, acids, bases, and energy. Perfect for science teachers seeking classroom-ready spelling lists, reading comprehension support, and engaging chemistry reading passages that strengthen academic vocabulary, critical thinking, and science literacy skills.

Explore how to teach atoms and isotopes with clear, engaging unit plans for middle and high school science. This blog post shares practical ideas for explaining atomic structure, isotopes like carbon-12 and carbon-14, hands-on activities, assessment tips, and ways to save prep time while boosting student understanding and curiosity about the building blocks of matter.

Teach elements, compounds and mixtures with 6 wonderful chemistry facts students remember: aerogels that are 99.8% air, iodine’s purple vapor, NASA-developed ferrofluids, gallium melting in your hand, colloids that do not settle quickly, and glass as an amorphous solid. Includes practical classroom ideas, Two Truths & a Lie, Micro-CER writing, and science literacy links for middle and high school chemistry.

7 amazing states of matter facts for middle and high school science: water’s triple point, dry ice sublimation, oobleck non-Newtonian behavior, lightning as plasma, why glass is an amorphous solid, why ice floats, and how sand can act like a solid, liquid, or gas. Includes practical lesson ideas, misconceptions to target, and a Two Truths & a Lie classroom routine for fast engagement and review.

Explore an incredible range of chemistry reading passages with questions for grades 5–11. This blog post shares practical ways to use science articles as lesson hooks, literacy routines, sub plans, extension tasks and review, plus topic ideas like pH, ionic vs covalent bonds, elements and compounds, equilibrium, redox, acids and bases, the mol, the periodic table, sustainable chemistry and more.

Hook middle school scientists with 14 engaging atoms & periodic table resources: theory slides, Elements Trumps game, 19 worksheets, simulations, hexagonal thinking & research templates. Ready-to-use lesson plans, Google Slides, answer keys - perfect for NGSS classrooms. Grab the bundle now!

Teach atoms, ions & isotopes with ready lesson plans, slides, games & worksheets. Complete chemistry unit for middle & high school - some free resources, periodic table integration. Download now!

High quality & low cost periodic table unit for middle school science: lesson plans, slides, games, worksheets on atomic number, valence electrons, trends. Engage students & save prep—download now!

Complete Periodic Table unit: lesson plans, worksheets, games & projects. Science teachers—grab free and some paid resources, teach atomic number fast.

Discover 14 must-have Periodic Table & elements resources with crosswords, worksheets & more—energize your science class now!

Teach isotopes with ease! Explore 19 engaging worksheets on subatomic structure, plus free answer keys—perfect for science teachers!

Boost learning with this free 4-worksheet bundle on protons, neutrons, electrons & isotopes—perfect for science teachers!