https://resources.perimeterinstitute.ca/collections/middle-school-gr-7-8 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/Middle2.jpg?v=1489775989 Middle School https://resources.perimeterinstitute.ca/collections/junior-high-gr-9-10 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_School-junior.jpg?v=1458825141 Junior High https://resources.perimeterinstitute.ca/collections/senior 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_School-Senor.jpg?v=1458825122 Senior https://resources.perimeterinstitute.ca/collections/awesome-demos 2026-06-01T18:52:27-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_LS_Demos.jpg?v=1458571765 Awesome Demos https://resources.perimeterinstitute.ca/collections/hands-on-labs 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_LS_HandsOnLab.jpg?v=1458824466 Hands-on Labs https://resources.perimeterinstitute.ca/collections/cutting-edge-lessons 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_LS_Lessons.jpg?v=1458571794 Cutting-edge Lessons https://resources.perimeterinstitute.ca/collections/featured 2026-10-07T07:01:56-04:00 daily https://resources.perimeterinstitute.ca/collections/the-mystery-of-dark-matter 2026-06-01T18:52:40-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_E01_DarkMatter.jpg?v=1458570993 The Mystery of Dark Matter https://resources.perimeterinstitute.ca/collections/the-challenge-of-quantum-reality 2026-06-01T18:52:28-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_E02_Quantum.jpg?v=1458571029 The Challenge of Quantum Reality https://resources.perimeterinstitute.ca/collections/beyond-the-atom-remodelling-particle-physics 2026-09-29T07:01:33-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_E03_Particle.jpg?v=1458571212 Beyond the Atom: Remodelling Particle Physics https://resources.perimeterinstitute.ca/collections/everyday-einstein-gps-relativity 2026-06-01T18:52:37-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_I01_GPS.jpg?v=1458571229 Everyday Einstein: GPS & Relativity https://resources.perimeterinstitute.ca/collections/the-process-of-science 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_I02_Process.jpg?v=1458571184 The Process Of Science https://resources.perimeterinstitute.ca/collections/revolutions-in-science 2026-06-01T18:52:50-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_I03_Revolutions.jpg?v=1458571154 (Retired) Revolutions in Science https://resources.perimeterinstitute.ca/collections/plancks-constant 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_I01_Planck.jpg?v=1458571376 Planck's Constant https://resources.perimeterinstitute.ca/collections/astronomy 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Astronomy.jpg?v=1458607977 Astronomy https://resources.perimeterinstitute.ca/collections/circular-motion 2026-06-01T18:53:02-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-CircularMotion.jpg?v=1458608943 Circular Motion https://resources.perimeterinstitute.ca/collections/energy 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Energy.jpg?v=1458609004 Energy https://resources.perimeterinstitute.ca/collections/gravity 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Gravity.jpg?v=1458609042 Gravity https://resources.perimeterinstitute.ca/collections/momentum 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Momentum.jpg?v=1458609072 Momentum https://resources.perimeterinstitute.ca/collections/process-of-science 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Process.jpg?v=1458609107 Process Of Science https://resources.perimeterinstitute.ca/collections/quantum 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Quantum.jpg?v=1458609135 Quantum https://resources.perimeterinstitute.ca/collections/relativity 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Relativity.jpg?v=1458609167 Relativity https://resources.perimeterinstitute.ca/collections/waves 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_Topic-Waves.jpg?v=1458609251 Waves https://resources.perimeterinstitute.ca/collections/lesson-compilations 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_LS_Comps.jpg?v=1458779713 Lesson Compilations https://resources.perimeterinstitute.ca/collections/black-holes 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_I01_BlackHoles.jpg?v=1458823039 Black Holes https://resources.perimeterinstitute.ca/collections/posters 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/teacher-posters-store.jpg?v=1464630498 Posters https://resources.perimeterinstitute.ca/collections/innovation-and-the-power-of-ideas 2026-06-01T18:53:49-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PoI_Screenshot_3.jpg?v=1482366757 Innovation and the Power of Ideas https://resources.perimeterinstitute.ca/collections/fr-featured 2026-10-07T07:01:56-04:00 daily https://resources.perimeterinstitute.ca/collections/pt-featured 2026-10-07T07:01:56-04:00 daily https://resources.perimeterinstitute.ca/collections/individual-lessons 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/PIStore_Topic_HeaderImages_LS_Lessons_large_d00d7ee6-3330-48e9-a8f2-9a97d293f5a9.jpg?v=1507646227 Individual Lessons https://resources.perimeterinstitute.ca/collections/astrophysics-cosmology 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/AdobeStock_82487040_-_Astronomy.jpeg?v=1708987042 Astrophysics & Cosmology https://resources.perimeterinstitute.ca/collections/astronomy-space 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/CareerMoves_2e_Image_for_Online_Store.jpg?v=1708024519 Careers https://resources.perimeterinstitute.ca/collections/electricity-magnetism 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/energy2.jpg?v=1708024470 Energy & Interactions https://resources.perimeterinstitute.ca/collections/astronomy-space-1 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/Gr6SpaceImageStore.png?v=1509543990 Space & Astronomy https://resources.perimeterinstitute.ca/collections/electricity-magnetism-1 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/Planks_Constant.PNG?v=1708024544 Electricity & Magnetism https://resources.perimeterinstitute.ca/collections/grade-school-science 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/Grade_School_Science.png?v=1708024498 Grade School Science https://resources.perimeterinstitute.ca/collections/particle-physics 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/Particle.png?v=1708024396 Particle Physics https://resources.perimeterinstitute.ca/collections/earth-science 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/Evidence_For_Climate_Change_ALT.jpg?v=1708024434 Earth Science https://resources.perimeterinstitute.ca/collections/teacher-network 2026-10-04T07:03:12-04:00 daily https://resources.perimeterinstitute.ca/collections/breakout-activity 2026-10-07T07:01:56-04:00 daily https://resources.perimeterinstitute.ca/collections/classical-physics 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/pexels-pixabay-60582.jpg?v=1721066576 Classical Physics https://resources.perimeterinstitute.ca/collections/general-science 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/kenny-eliason-zFSo6bnZJTw-unsplash.jpg?v=1721066586 General Science https://resources.perimeterinstitute.ca/collections/teaching-science 2026-10-07T07:01:56-04:00 daily https://cdn.shopify.com/s/files/1/1160/8438/collections/kenny-eliason-zFSo6bnZJTw-unsplash_d42707ef-a239-47fc-9ad3-0433226a64bb.jpg?v=1721066592 Teaching Science https://resources.perimeterinstitute.ca/collections/test-collection 2026-10-07T07:01:56-04:00 daily https://resources.perimeterinstitute.ca/collections/quantum-1 2026-10-07T07:01:56-04:00 daily