The first challenge for the second graders will be to learn about the properties of water.

The second challenge for the second graders is:

In teams of engineers, the task is to communicate with your team, collaborate, innovate, and build several different types of boats. The goal is to create the best boat that will stay straight in the water, travel as quickly as possible and move a cargo of the most mass possible.

Properties are used to describe matter and tell what it is like or what it can do. Observable properties include color, flexibility, hardness, texture, and absorbency.

States of

States of matter are the different forms of matter; there are three that we will focus on: solid, liquid and gas.

Liquids Liquids are a state of matter that don't have a definite shape; they take the shape of their container and their molecules can move around.




Newton's Laws


Energy is the ability to do work. Energy is how things move and change. It is all around us and takes many forms.

Potential Energy

Potential Energy is energy that is stored.

Kinetic Energy

Kinetic Energy is energy that is moving. It is also called energy of motion.



When an object is put into water, it pushes water out of the way and takes the place of the water.  We say that water displacement has occurred. Volume is a measure of the amount of space an object takes up. Objects push water out of the way based on the object's volume.

Cohesion Cohesion is when water molecules are attracted to and "stick" to each other.

Adhesion Adhesion is when water molecules attract to and "stick" to other types of molecules.


An engineer is a person who designs and builds products, machines, systems, or structures. Engineers want to know how and why things work. They have scientific training that they use to make practical things. Often, they are presented with a problem and design a way to solve that problem.

Click here to view the phenomena displayed in the classroom

Click here to view links that will extend your learning

Click here for the STEM Winter '23 photo gallery

Go back to the homepage