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  1. Camera Obscura (Pinhole Camera)

    https://ohio4h.org/camera-obscura

    (INTERMEDIATE to ADVANCED level) |  PDF for PRINTING NOTE: It is never safe to look at the sun without proper ... sun during a total solar eclipse. A total solar eclipse occurs when the moon passes between the sun ... tracing paper should be between the tubes. The aluminum foil should face out. Using the pushpin, gently ...

  2. Fertilizer Certification

    https://extensionpubs.osu.edu/fertilizer-certification/

    of fertilizer to more than 50 acres of agricultural production grown primarily for sale. Topics ...

  3. Upcoming Events

    https://ohio4h.org/statewide-programs/operation-military-kids/upcoming-events

    years of age by the time of camp Cost: Ohio Army National Guard: $150 Department of Air Force (any ... component): $150 Any other branch/component: $250 *For questions about cost, please see the FAQ document ...

  4. Solar Eclipse Shadow Play

    https://ohio4h.org/solar-eclipse-shadow-play

    ADVANCED level) |  PDF for PRINTING When a total solar eclipse occurs, some places will be completely engulfed in ... Point light source       Extended light source         Differences in shadows between a point light ... distinguish between the rays coming from the two sources. In Figure 1, light rays from both sources are ...

  5. Poultry

    https://ohio4h.org/poultry

      The Ohio Department of Agriculture confirmed that Highly Pathogenic Avian Influenza has been detected ... condensed into one Poultry Project and Record Book for members of all skill levels. Use this book for these ... Biosecurity Avian Influenza and Biosecurity Fact Sheet High Path Avian Influenza Update- Jan 2022 Backyard ...

  6. Category 8: Turf Pest Control

    https://extensionpubs.osu.edu/category-8-turf-pest-control/

    lawns, turf, sod and soil areas being prepared for the production of turf for the control of pests, ...

  7. Category 8: Turf Pest Control (PDF)

    https://extensionpubs.osu.edu/category-8-turf-pest-control-pdf/

    lawns, turf, sod and soil areas being prepared for the production of turf for the control of pests, ...

  8. Core Manual Bundle

    https://extensionpubs.osu.edu/core-manual-bundle/

    pesticide use and includes a sample test is also provided in the back of every chapter. Core is not ...

  9. Core Manual Bundle (PDF)

    https://extensionpubs.osu.edu/core-manual-bundle-pdf/

    pesticide use and includes a sample test is also provided in the back of every chapter. Core is not ...

  10. Summer Courses at Stone Lab

    https://woostercampuslife.cfaes.ohio-state.edu/february-4-11-2024-january-29-february-4-2024-jan-21-27-2024/summer-courses-stone-lab

    get outside, and discover science. Ohio State's Stone Lab offers high-impact courses that give ...

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