Kindergarten Scientists Explore Water & Wood Through Hands-On Investigation
Kindergarten students at Pierce Terrace Elementary School this week were stepping into the role of young scientists as they engaged in a hands-on investigation to observe how water interacts with wood. Guided by kindergarten teacher Ms. Cassandra Carlson, the lesson was part of the class’s current science unit, Materials and Motion, and emphasized exploration, curiosity, and collaboration.
Before the investigation began, Ms. Carlson led students through a pretend practice session to model proper use of droppers and safe, careful handling of materials. This preparation helped students feel confident and purposeful as they transitioned into the real experiment. “They feel like real scientists while they are participating; I’m proud that they can collaborate so well,” Ms. Carlson shared.
During the activity, students closely observed pieces of wood as water was applied, noting visible changes and sharing their discoveries aloud. Some of the wood samples were natural, while others were manmade using sawdust, allowing students to compare textures and reactions. As students worked, Ms. Carlson guided their thinking by asking open-ended questions such as, “What happens when wood gets wet?” and reminding them that “good scientists think about what it can be.”
Excited observations quickly filled the room. One student enthusiastically announced, “Mine is making a bubble on top,” sparking further discussion and comparison among classmates. Students described what they saw, felt, and noticed, using language connected to physical properties such as texture, color, flexibility, and weight.
The lesson directly supports the Materials and Motion science standards, which focus on observing, describing, and classifying objects by their physical properties and the materials from which they are made. Through this investigation, students explored how wood behaves when exposed to water and began developing an understanding of how material properties influence an object’s function. Later in the unit, students will extend their learning by investigating additional materials such as cloth, metal, plastic, and paper.
Key skills emphasized during the lesson included asking thoughtful questions, planning and carrying out simple investigations, interpreting observations, and later using evidence to explain why certain materials are chosen for specific purposes. Students were encouraged to make connections between properties and functions.
The core science concepts were reinforced throughout the activity, including identifying physical properties like hardness, smoothness, and flexibility; recognizing common materials; and understanding how an object’s properties determine its use. Students will be able to practice essential scientific behaviors, such as analyzing data by comparing future materials, developing simple models through discussion, and providing evidence-based explanations.
Through guided inquiry and hands-on exploration, Ms. Carlson’s kindergarten class is building a strong foundation in scientific thinking. The water-and-wood investigation not only supported academic standards but also fostered curiosity, teamwork, and confidence—key ingredients in helping young learners see themselves as capable, inquisitive scientists.
