Second graders explore the three states of matter, from a hard ice cube to running water to invisible vapor, and learn how heating and cooling move matter from one state to another.
Students will be able to…
Ice, water, and steam are all the same stuff. How can one material take three such different forms, and what moves it between them?
Project this and open each card to explore the three states of matter and how heating and cooling change them.
Tap any phase to open the teacher moves and student actions.
An ice cube, a puddle, and the steam over a hot pot are all the same stuff: water. How can one thing look so different?
Students explore the states of matter.
Students classify everyday objects.
Students describe a state change.
Students reflect on states of matter.
Aligned to the Next Generation Science Standards (Grade 2 / Elementary Science).
Plan and conduct an investigation to describe and classify materials by their properties.
Construct an argument that some changes from heating or cooling can be reversed.
Planning and carrying out investigations.
Recall information from experiences to answer a question.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students start with water as ice, describe how to melt it and then boil it, and draw all three states, so state changes become something they can picture. A printable states-of-matter worksheet is in the Science library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.