Energy and Waves for Grade 4: Collisions, Wave Patterns and Evidence
Energy and waves for Grade 4, taught through evidence
Fourth graders can describe a moving ball long before they can say what energy is doing. The Energy and Waves unit starts with changes students can see, builds up to collisions and wave patterns, and closes with the claim, evidence, reasoning structure so they can explain what they found.
See the unit and bundleIn short: Teach energy to Grade 4 by linking it to changes students can observe, then comparing speeds, studying collisions, following energy pathways and describing wave patterns. The Energy and Waves unit follows that order across eight lessons, with a page of wave model diagrams and a closing lesson on claim, evidence, reasoning. A separate teacher guide has answers and assessment feedback. The unit is written with NGSS in mind, with no claim of approval or alignment.
Starting point
Begin with change, not with a definition
Energy is hard to teach because it is not an object. A definition read aloud rarely sticks. Lesson 1 of the Energy and Waves unit links energy to observable change instead, so students start from something they can point at: a ball that rolls, a block that is pushed, a sound that is made.
Lesson 2 compares speeds, which gives students a measurable way to describe motion before they talk about collisions. Ask them to say how they know one object is faster, and to write the evidence on the practice page.
Collisions
Collisions and design
Lesson 3 looks at collisions and how design responds to them. This is the point where many students first connect energy to something with consequences. Let them predict, test and then write what happened and why.
Lesson 4 follows how energy moves from place to place. A simple tracing habit helps: ask students to name where the energy was before, where it is after, and what changed in between. The case card for each lesson collects that reasoning in writing.
Waves
Wave patterns, amplitude and wavelength
Lesson 5 describes the patterns waves make, and Lesson 6 compares amplitude and wavelength. These two words are often swapped, so the unit includes a page of wave model diagrams where students compare the two directly. Have them mark each on a drawing before they use the words in a sentence.
Lesson 7 looks at how patterns can carry information, a natural bridge from waves to codes. Keep the examples concrete and close to the pages: students should be able to say what the pattern is and what it stands for.
Common mix-ups
Where Grade 4 students tend to get stuck
Three mix-ups come up often. Students say that energy is used up rather than moved from one place to another, they treat a bigger wave as a faster wave, and they swap amplitude and wavelength. None of them is careless. Each comes from everyday language, where a loud sound is "big" and a tired person has "no energy left".
The case card in each lesson is the best place to catch these, because students have to give a reason in their own words. Read a handful at the end of the period and open the next lesson with one anonymous example, such as a drawing where amplitude is marked on the wrong part of the wave, and ask the class to repair it.
Claim, evidence, reasoning
Ending with an explanation students can defend
Lesson 8 gives students a structure for explaining what they found: a claim, the evidence that supports it, and the reasoning that connects the two. The same structure works for every lesson before it, so you can introduce it early and name it each time students write a case card.
Students who write a claim and stop are common in Grade 4. Prompt them with a single question, "How do you know?", and ask for one piece of evidence from their own observations.
Teacher support
What the guide and extras give you
The 13-page teacher guide contains a teaching concept, sequence and preparation notes, answers and teaching notes for all eight lessons, an assessment key with feedback, and a chapter on differentiation and observation. Sources and production notes are at the end.
The unit also includes editable DOCX text editions and a 17-slide presentation. Two vocabulary pages, a learning check and a project with a record and reflection page close the unit.
Plan
A suggested lesson-by-lesson pacing
The material gives no timings. This plan assumes one lesson per period, with the case card inside the period. Move the project to a separate week if you want it to be a bigger task.
| Lesson | Focus | Suggested pacing |
|---|---|---|
| 1 | Energy and observable change | 1 period |
| 2 | Speed comparisons | 1 period |
| 3 | Collisions and design | 1 to 2 periods |
| 4 | Energy pathways | 1 period |
| 5 | Wave patterns | 1 period |
| 6 | Amplitude and wavelength | 1 period, using the wave model diagrams |
| 7 | Information codes | 1 period |
| 8 | Claim, evidence, reasoning | 1 period, then the learning check and project |
Resources
The unit, its bundle and companion science resources
The unit comes first, then the bundle that includes it, then sibling units and related elementary science resources.
Energy and Waves | 8 Lessons, Case Cards & a Project | Grade 4
Elementary Science Bundle | Energy and Waves, Matter and Ecosystems, Life Cycles & Earth | 4 Units | Grades 3–5
Matter and Ecosystems | 8 Lessons, Case Cards & a Project | Grade 5
Life Cycles and Inherited Traits | 8 Lessons, Case Cards & a Project | Grade 3
Elementary Physical Science Bundle | Circuits, Forces, Light, Levers & Pulleys | Grades 3–7
Elementary Science Curriculum | Life, Earth & Physical Science | 11 Units | Grades 3–5
What you get
What you can do this week
- Open with Lesson 1 and ask students to list changes they can see in the classroom
- Use the case card as a short written exit ticket after each lesson
- Print the wave model diagram page for a hands-on amplitude and wavelength comparison
- Teach claim, evidence, reasoning early and reuse it every lesson
- Use the 17-slide presentation to start or close a lesson
- Edit the DOCX text edition to match your class vocabulary
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Questions
Frequently asked questions
Which standards does this unit fit?
It is written for Grade 4 science with NGSS in mind. No alignment or approval by any state, district or standards body is claimed, so compare the lessons with your own standards.
Are answers included?
Yes. The separate teacher guide has answers and teaching notes for all eight lessons, case guidance and an assessment key with feedback.
How long does the unit take?
The material gives no timings. Plan by lesson, usually one period each, and allow extra time for the learning check and project.
Can I edit the student pages?
Yes. The unit includes editable DOCX text editions of the classroom material and the teacher guide. The PDF is the print reference.
Is TeachLessons connected to a state or ministry?
No. TeachLessons is independent and is not endorsed by any department, ministry, state or exam board.
Who is the unit for?
Grade 4 science teachers who want a closed unit on energy and waves, and homeschool families who want printable lessons with a separate answer guide. In the UK and Australia it sits at roughly Year 5.
Four elementary science units in one bundle
The Elementary Science Bundle includes Energy and Waves, Matter and Ecosystems, Life Cycles and Inherited Traits, and a fourth unit on how Earth's surface changes. It costs $59.99 against $89.96 for the four separately.
See the science bundle