Category: Learning Outdoors (Page 25 of 63)

Seed of the Week: Walnut

Karen identified our mystery seed of the week correctly last week, it is a walnut.

walnut

There are over 20 species of trees called walnuts in the genus Juglans, but one common one in the eastern US is the black walnut, Juglans nigra.

Walnuts are beautiful trees.

walnut tree

The wood is used for fine furniture and the nuts are edible.

walnut-bark

The trees produce flowers in the spring.

walnut-flowers

The flowers produce fruit.

walnut-in-husk

Did you know that the green husks can be used to produce a brown dye? In fact you can stain your hands and clothes if you play with the husks.

walnuts-and-pears

Walnuts and pears make a yummy salad.

Do you have a walnut tree nearby? What is your favorite walnut recipe?

Seed of the WeeK: Jacaranda

I chose this tree for mystery seed of the week last week because it is grown throughout the world.

jacarunda-a

When it is flowering, the bright purple catches your eye off in the distance.

jacarunda

The jacaruanda (Jacaranda mimosifolia) has huge clusters of purple flowers and lacy foliage.

jacarunda2

jacarunda3

The jacaruanda flowers are long purple tubes.

It grows where there is little danger of frost, including the lower desert in Arizona.

The seeds I showed last week are found within large pods. I don’t have a photo of the pods.

Interesting Science Links and Thoughts

There are a lot of things going on this month.

Look for Space Day celebrations May 7-8, 2010. In the left sidebar is a set of middle grade lesson plans to download for free. The “Other Resources” is a .pdf file of a chat with four former astronauts. There are also games and links.

The NSTA (National Science Teacher’s Association) blog has a number of interesting posts.

The first is a short list of websites with information about the recent oil spill.

I was particularly interested in the post:  Are children getting enough direct experience with natural materials? The middle and high school teachers were bemoaning that most of the children in their classes had little exposure to real organisms.  For example, most of their students had never seen a real grasshopper! The teachers in the blog post blame the elementary teachers, but I think that is unfair. I recently was going to visit a second grade class room with live insects, but my visit was canceled because the classes were too busy with standardized testing.

Elementary teachers have an enormous amount of pressure to get their students through a battery of standardized tests. Their jobs may be at stake. But obviously this emphasis on testing has unforeseen consequences for the students’ future success, at least in science.

What do you think?

For more information on oil spills for children:

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