This is a great lesson to teach students about their senses and how valuable they are in their observations.

The Blind Naturalist

Grade Levels: K-5

Discussion:

Naturalists use all their senses to explore the world. This activity encourages students to describe objects using their sense of touch.

Discuss how a scientist may use their different senses to learn things about the natural world with the class.

For example many ornithologists, bird researchers, study bird songs to learn more about the animals. Botanists use their sense of smell to learn more about plants. Ask students for more examples.

Materials:

cardboard boxes with hand sized hole cut in one side
various natural objects that are interesting to touch
(snake shed, pine cone, skull, feathers, fur, large seed pods, turtle shell are a few examples)

Activity:

Place a different object in each one of the boxes. Make sure the boxes are closed and the hole is located on the side of the box. Sometimes it is a good idea to tape a piece of paper on the top of the box to discourage students from looking into the box through the hole cut in the side. Write a number on each of the boxes so the students may reference them on their paper.

Each student takes turns touching the objects in the boxes. No talking, peeking, or showing each other what they have written!

They then write down a description of each object. Was it rough, smooth, hard, soft, big, small, bumpy? Encourage the children to be as detailed as possible. Have the children guess what is in each of the boxes. To add time to the activity, ask each student to try and draw what is in the boxes by feel alone.

Closure:

Have a class discussion about their experiences. Have the students share descriptions of the objects. What did they learn about each object by touching it?

Reveal each of the objects. Were any of the students correct? How did seeing the object compare to how it felt? What would the benefits be for a scientist to use all his senses when learning about something?

We had a great Question from Sujan at our After School Class last week.

“What is the name of the lizard we met in class?”

Well Sujan, the Sudan Plated Lizard has TWO names!

The lizard we met is named Gerrhosaurus major, or “Gary” for short.  Why such a long name?



All animals, rocks, plants, even types of clouds are given a special name called their “scientific name.”  This helps scientists put things in groups with things that are all alike.

For example:

Tree frogs that have sticky feet may be put in one group while frogs that have webbed feet and live in the water are put into another group.

They are grouped by the type of feet they have.

You can have fun doing an experiment in your own house!

Think of different ways you can group things in your house.  Some ideas may be.  Arranging things by color, size, or what it’s made of.

Choose a way to group things, then write down the different categories of groups.

Say you chose to group things by color.  Your categories will be different colors; red, blue, green, yellow..etc.

Then walk around your house and put objects in your house in its correct category.  (Yellow things go in the “Yellow” category.)  Write it down.

For extra fun, do this experiment with other people in your house.  Have them choose a different way to group things.  Compare your lists at the end!

You will find things that may be hard to put in one group.  (maybe it’s blue & yellow)  You can only put it in one, that means you have to decide!

It is lots of fun to be a scientist that classifies things!  They are called Taxonomists.