Tuesday, April 7, 2009

Science: Lovely Light

By Lexi, Clementine, and Chloe

In science, our class was learning about light. We specifically learned that objects can be translucent, transparent, or opaque.

Translucent is a science term that means only some light can pass through an object.

For example, this blue plastic T lets some of the light pass through it, so it is translucent.

Another term we learned is transparent.

If an object is transparent, all the light can pass through it. The cylinder above is transparent.

I can see Pelly the Pelican inside the object.

If you have a window at your house, notice that it is transparent.

If NO light passes through an object then it is opaque.

Opaque objects create a shadow. Your body is opaque. No light will pass through it. Shadow puppets are a fun way to show an opaque object. One shadow puppet you can make with your body is a bird.

How do you do it?

First, go outside on a sunny day. Make an X with your arms, hook your thumbs, and spread your wings.

See the opaque bird that you made with your hands?

Here are some other shadow puppet animals you can make.

Now you know about lovely light!


  1. Dear Mrs. Yollis,

    We finally published the post! It looks great!

    Your student,

  2. Dear Lexi, Chloe, and Clementine,
    I love how you gave an example of the shadow puppet and also gave a picture of the directions. I also liked that you provided pictures on translucent, opaque, and transparent items. Good work!


  3. Dear Lexi, Chloe, and Clementine,

    What a great science post! The pictures you used really help explain each concept. I liked how the object you used for translucent was shaped like a T. (T for translucent!)

    How do you like the jpg I found with the sample shadow puppets? I thought it would be useful for anyone who wanted to learn more shadow puppets.

    Thanks for a great learning post!
    Mrs. Yollis

  4. Dear Lexi, Chole and Clementine,

    This was a great demonstration on light. I loved your examples.

  5. Dear Clementine, Lexi and Chloe,
    What an outstanding lesson on the differences of how light interacts with objects. Now I understand the difference between translucent and transparent. Also the example you gave for opaque was interesting and fun to try myself. Now I can entertain my family with shadow puppets! (Especially my granddaughter).

    Clememtine's Aunt Jacki

  6. Dear Lexi, Clementine, and Chloe

    I loved how you made the shadow puppets. That bird look so real. Keep up the good work.

    Shane F:)

  7. Dear Lexi, Clemintine, Chloe,

    That post was so interesting! I learned a lot!

    Your Friend,
    (Willson's class)


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