Pat built a sandcastle. He vvorked hard all day to make his castle perfect. The next

morning, vvhen he vvent to check on it, the sandcastle

had vvashed avvay. What can Pat build or change about his castle to protect it from the

ocean tide? © t he first grade roundup

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STEM CHALLENGE : Protect the Sandcastle

Step 1: Plan the idea – How can you solve Pat's problem?

-Complete the Protect the Sandcastle Planning Page

Step 2: Build the idea -

1, Build your sandcastle using dirt from outside in a pan with sides (cake pan, casserole dish)

2. Use items found around the house to create a structure to protect your sandcastle. You can

use items found in the recycling bin, such as lids from jars and cardboard from empty boxes.

Step 3: Test the idea -

Fill the pan with water and make waves coming toward the sandcastle.

Step 4: Share the idea-

-Complete the sandcastle solution page.

<D Think about your pion t o prot ect Pot·s sandcastle. Work with your group to answer each of the questions.

= (lJ ----------------------------------------,

How wi ll my p ion protect Pat·s sandcastle? I I.------------------------------------------1 I ·------------------------------------------1 I I.------------------------------------------What materials do I need? I can draw a picture of' my idea

and label its parts.

Think abou t you r p lan to p r otect Pat·s sandcastle. Wor k w ith you r g r o u p to answer each o-F the q uestio n s .

----------------------------------------,Did my p lan protect Pat·s sandcast le? W hy or why nqt?,-,.--~~---.........,.i,........;::,,--......-.---.L___,.______

I I.--------------------------------------------I ·--------------------------------------------1·--------------------------------------------·--------------------------------------------1

1-------------------------------------------­L-----------------------------------------------------------------How could I improve my solution? I can d raw a p icture oF t h e

results oF my solution.