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Maine Grade 4 Science
Compare amplitude and wavelength in three repeating wave models, then connect a floating marker’s movement to Maine Grade 4 science references.
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Standards source: Maine Science Standards, Maine Department of Education.
Separate wave height from spacing in a repeating model
Compare amplitude and wavelength in three repeating wave models, then connect a floating marker’s movement to Maine Grade 4 science references.
The Maine science standards directory identifies the standards adopted in 2019 as current. It states that the proposed later revision was not authorized. The linked PDF used here presents that 2019 Learning Results framework; its 2026 file date does not establish a new adoption. Use the Maine Science, Technology, and Engineering Standards (2019 Learning Results) for the selected performance expectation and its complete supporting information. This activity selects a Grade 4 expectation. It is one part of a science course, not a complete curriculum.
Two different ways to change a wave pattern
A class compares three drawn repeating wave models using the same scale. Model A has a crest 2 centimeters above the resting line and 8 centimeters between neighboring crests. Model B has a crest 4 centimeters above the resting line and the same 8-centimeter spacing. Model C has a crest 2 centimeters above the resting line and 4-centimeter spacing. The lengths describe the drawings, not measurements of ocean waves. Students decide which comparison changes amplitude and which changes wavelength. They also consider a floating marker bobbing as small water waves pass.
Explain the evidence or model
Amplitude is measured from the resting line to a crest in this model; wavelength is measured between corresponding points of neighboring repeats, such as one crest and the next. Comparing A and B changes amplitude while keeping wavelength the same. Comparing A and C changes wavelength while keeping amplitude the same. The resting line matters: the full vertical distance from trough to crest would be twice the listed amplitude for these symmetric drawings. A floating marker moving up and down provides an example of waves causing an object to move. Its bobbing does not show that the marker must travel horizontally with each passing crest.
| Model | Rest line to crest | Crest to next crest |
|---|---|---|
| A | 2 cm | 8 cm |
| B | 4 cm | 8 cm |
| C | 2 cm | 4 cm |
What to check in the explanation
The table gives spatial measurements but no times. It does not establish which wave repeats more often per second or how fast a crest travels. Students should name the measured dimension before comparing a bigger wave: bigger could mean taller or more widely spaced. Keep the drawing scale fixed so a stretched picture does not create a misleading change. These are repeating models; a single disturbance can also be a wave, so repetition should not be presented as a requirement for every wave. A small supervised water demonstration can show movement, but its pattern will not exactly reproduce every detail of the drawings.
Plan the next activity
- Draw and label the resting line and two neighboring crests.
- Match the two kinds of distance to amplitude and wavelength.
- Explain a comparison using the dimension held fixed as well as the one changed.
Ask a partner to create a fourth model with the amplitude of B and the wavelength of C. Check both distances rather than judging the picture by appearance. For an observation activity, let a teacher demonstrate gentle water waves and record how a floating marker changes position. Separate the observed movement from a claim about speed, direction, or travel distance that was not measured. Return to the wave lesson and use the complete state expectation to plan further modeling. This short comparison introduces selected patterns; it does not cover the entire science course.
Science Lessons and Related Quizzes
Read a short lesson, work through its example, and try a related science-area quiz. These are common Grade 4 ideas; use the state standards below to choose what matches your class.
Physical Science
Life Science
Maine Science by Grade
Browse Maine science pages by grade.
Start With a Practice Test
These independently published practice sets open on this page. Check their directions and topic coverage alongside current Maine assessment guidance. Use their feedback alongside classroom work; they are not official Maine assessments or a certified match to the full course.
Maine Grade 4 Science Practice Test 1
An independently published practice set across a range of science topics.
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Maine Grade 4 Science Practice Test 2
Fresh questions and new phenomena to build accuracy.
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Maine Grade 4 Science Practice Test 3
New problems that push reading of data, models, and evidence.
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Maine Grade 4 Science Practice Test 4
Another independently published practice set with a built-in timer.
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Maine Grade 4 Science Practice Test 5
A brand-new mixed set to test how ready you are.
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Maine Grade 4 Science Practice Test 6
Use another independent practice set and examine its feedback alongside classroom work.
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Grade 4 Science Skill Quizzes
Choose a science-area quiz after studying its related lesson. These independent resources may include topics beyond this grade’s expectations; use the adopted Maine standards and the school’s course plan to select suitable practice.
Matter and Its Properties
A quick 10-question check on matter and its properties, with feedback to review after answering.
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Forces and Motion
A quick 10-question check on forces and motion, with feedback to review after answering.
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Energy
A quick 10-question check on energy, with feedback to review after answering.
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Waves and Information
A quick 10-question check on waves and information, with feedback to review after answering.
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Cells, Structures and Life Processes
A quick 10-question check on cells, structures and life processes, with feedback to review after answering.
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Ecosystems and Heredity
A quick 10-question check on ecosystems and heredity, with feedback to review after answering.
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Evolution, Fossils and Adaptation
A quick 10-question check on evolution, fossils and adaptation, with feedback to review after answering.
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Earth and Space Systems
A quick 10-question check on earth and space systems, with feedback to review after answering.
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Earth, Human Activity and Engineering
A quick 10-question check on earth, human activity and engineering, with feedback to review after answering.
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Grade 4 Science Study Tools
A few minutes of review between practice tests. Both open right here.
Grade 4 Science Flashcards
Review terms in this independently published deck. Use the classroom’s vocabulary and reading level to decide which entries need practice.
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Grade 4 Science Quick Review
Use this concise review alongside observations, lessons, and the complete Maine standards document. Add course topics that need further explanation.
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Maine Grade 4 Science Topics
Use these brief labels as a study navigator, not as full standards or a certified alignment map. Use the official Grade 4 expectations to check which details and boundaries apply. Read the complete Maine standards document for official requirements.
PS Physical Sciences
- Speed and Energy
- Energy Transfer by Sound, Light, Heat, and Currents
- Energy Changes in Collisions
- Designing Energy-Converting Devices
- Wave Patterns and Movement
- Reflected Light and Vision
- Patterns for Transferring Information
LS Life Sciences
- Organism Needs, Structures, and Life Cycles
ESS Earth and Space Sciences
- Earth Materials, Rocks, Fossils, and Landforms
- Patterns in Earth's Features
- Natural Resources and Human Impacts
ETS Engineering, Technology, and Applications of Science
- Engineering Design and Solution Evaluation
- Fair Tests and Design Improvements
Maine Grade 4 references for this investigation
These selected references support the activity’s focus. Read the complete Maine expectation and supporting information through the state directory. Check the school’s course plan for the rest of the year’s topics.
| Reference | Selected focus | Official document |
|---|---|---|
| 4-PS4-1 | Model amplitude, wavelength, and movement caused by waves | Read page 22 |
Maine Grade 4: Math and English Too
Science is part of the Maine grade 4 subject collection. Use the related subject pages to organize cross-subject study.
Maine Grade 4 Math
Six full practice tests, printable worksheets, step-by-step lessons, and Maine Grade 4 math resources.
Open the math center →Maine Grade 4 English
Reading, writing, and language standards for Maine grade 4, organized with selected activities and references.
Open the English center →Maine Grade 4 Science: useful planning questions
How does Grade 4 connect to Maine’s science assessment?
Grade 4 is not a Maine Science Assessment grade. The current state guidance identifies Grades 5, 8, and the third year of high school. Follow the school’s assigned assessment pathway and current directions. Instruction continues in other grades. The independently published practice here uses its own question counts, timers, and scoring; it is not an official state assessment or a prediction of a state score. Read the official guidance.
Can the table establish which wave travels fastest?
No. It gives distances in drawings but no time measurements. Compare amplitude and wavelength using the stated dimensions; speed requires additional information.
Where should I check the complete science requirements?
Start with the Maine science standards directory and its linked Maine Learning Results document. Read the Grade 4 expectations and their supporting information alongside the school’s curriculum plan. The selected investigation and resources here do not certify complete course coverage. Read the official guidance.
State sources checked October 6, 2026.
Grade 4 Science in Other States
Standards, practice tests, and quizzes for grade 4 science in every state and Washington, D.C.
Choose useful science practice
Match the available task to the unit being taught. Discuss the evidence and explanation alongside classroom work; an independent practice score does not establish complete course coverage or state-assessment readiness.
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Maine Grade 4 Science: study questions
How does Grade 4 connect to Maine’s science assessment?
Grade 4 is not a Maine Science Assessment grade. The current state guidance identifies Grades 5, 8, and the third year of high school. Follow the school’s assigned assessment pathway and current directions. Instruction continues in other grades. The independently published practice here uses its own question counts, timers, and scoring; it is not an official state assessment or a prediction of a state score.
Official source ↗Can the table establish which wave travels fastest?
No. It gives distances in drawings but no time measurements. Compare amplitude and wavelength using the stated dimensions; speed requires additional information.
Where should I check the complete science requirements?
Start with the Maine science standards directory and its linked Maine Learning Results document. Read the Grade 4 expectations and their supporting information alongside the school’s curriculum plan. The selected investigation and resources here do not certify complete course coverage.
Official source ↗Resources from Effortless Math · Editorial standards · Test details checked October 5, 2026