# Birds and Worms

Prep Time:   15 minutes     Lesson Time:  30 minutes  Age: 3rd and 4th graders

Source: Adapted from Project Learning Tree

Areas of study: math, science

# Summary

Background/objectives: to teach students about camouflage affecting prey, and utilize bar graphs to analyze results of activity

Materials:

• 5 different colors of string that will camouflage differently in grass (ex. light green, dark green, blue, yellow, and clear)
• a plot of grass around 15 x 15 ft^2
• liquid glue or double sided tape
• poster sized sheet of paper

Preparation:

Using the five colors of string, cut 25 approximately 3inch strips of each, then distribute the colors throughout the plot of grass.

Procedure:

1. Ask the students what they know about camouflage and how it helps animals survive
2. Show students the plot of grass and instruct them to pick up all of the “worms” they can find in a 2 minute period once the activity begins
3. Begin two minutes and let all of the children search the plot for as many worms as they can.
4. Once the two minutes are up tell each child to bring their worms inside and sort them by color
5. Draw columns on the poster paper and put the color labels at the top of the columns.
6.  Place a line of glue through the center of each column and have the children glue each of their strings to the appropriate column
7. Discuss what the results show without counting each string, then count to see if it’s accurate
8. Talk about why there were differences between the colors
9. Remember to pick up the remaining strings from outside

# Assessment:

Birds and Worms Worksheet

Tips and Tricks:

Make sure the students space the worms somewhat equally for each column so that the bar chart doesn’t become skewed

How to implement for…

Pre-K-2: could implement pretty easily, just with less detailed discussions

5-6: could bring in talks about shifts in populations, like the peppered moth example.

# Resources:

Original Project Tree Lesson