Grade 4 Science | Student Workbook Unit 1

SCIENCE STUDENT PDF: Download the Science-only fillable workbook. Science lessons, observations and questions follow on this page. Record actual measurements honestly, and save the PDF in your own app. This is Unit 1, not a full annual Science course.

Lesson 1: Energy transfer and measurements

Science Lesson

Learn: A lamp transforms electrical energy into light and thermal energy. A battery stores chemical energy. Energy is transferred or transformed, not created from nothing. Measurements should have appropriate units.

Science Practice: 10 Assignments

1. Identify the energy input to an electric lamp.
2. Name two energy outputs from the lamp.
3. Draw a labeled energy-flow diagram.
4. Explain why a lamp may feel warm.
5. Measure or estimate a safe household object’s length in centimeters.
6. Explain the difference between an observation and an explanation.
7. What does a thermometer measure?
8. Why should a graph label its axes?
9. Write a question about energy that could be investigated safely.
10. Advanced: distinguish useful energy output from unwanted heat loss, without claiming energy disappears.

Observe and Explain

Separate observations from hypotheses and illustrations from measured results. Never invent experimental data. Use safe materials and adult guidance where needed.

Advanced Science Extension

Form a measurable question about this lesson, describe a fair comparison and identify at least one limitation. This challenge is available at any age when prerequisites are mastered.

Print and Navigate

Copy the lesson or print this webpage. Return to Grade 4 subjects.

Grade 4 | Five-Day Science Investigation Extension

This original five-day Science Unit 1 extension offers explicit lessons, practice, safe investigation and an independent check. It is not the complete 36-week subject textbook.

Day 1: Energy Transfers

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Energy is transferred or transformed, not created from nothing. A lamp converts electrical energy mainly into light and thermal energy. A warm lamp demonstrates some transfer to surroundings.

• 1. Identify lamp input energy.
• 2. Name two output forms.
• 3. Why does a lamp become warm?
• 4. Draw an arrow model of the transfer.

Record your reasoning and any real measurements with units. Never present hypothetical data as collected evidence.

Day 2: Measurement and Units

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A ruler measures length, not temperature. Use centimeters or meters, align an object with zero, and record measurements precisely enough for the instrument. A thermometer measures temperature.

• 1. Which tool measures a book’s length?
• 2. Which tool measures temperature?
• 3. How many cm in 1 meter?
• 4. Explain why units belong with measurements.

Record your reasoning and any real measurements with units. Never present hypothetical data as collected evidence.

Day 3: Graphing Evidence

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Graphs represent recorded measurements. Label each axis with the variable and unit, choose a consistent scale, and avoid connecting unrelated categories with a line.

• 1. A table records time and temperature. What goes on the horizontal axis?
• 2. What unit might label the vertical axis?
• 3. Why must the graph use an even scale?
• 4. Are invented values valid experimental evidence?

Record your reasoning and any real measurements with units. Never present hypothetical data as collected evidence.

Day 4: Safe Energy Investigation

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Compare a small battery-powered LED lamp in two positions using adult-supervised observation. Avoid sockets, hot bulbs, exposed wires and dismantling batteries. Record what was actually observed.

• 1. Name a safe light source.
• 2. State an observable outcome.
• 3. Name one condition to hold constant.
• 4. Why avoid touching an operating hot bulb?

Record your reasoning and any real measurements with units. Never present hypothetical data as collected evidence.

Day 5: Independent Check

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Explain transfers, measurement and data limits without help.

• 1. Electrical energy entering a lamp becomes which useful form?
• 2. Name an unwanted thermal output.
• 3. Which tool measures length?
• 4. Why are graph-axis labels necessary?

Record your reasoning and any real measurements with units. Never present hypothetical data as collected evidence.

Cumulative Extension

Revisit two concepts using different examples. Write a new testable question, label variables and identify the evidence required before claiming a result.

Grade 4 Science Unit 1: Expanded Student Textbook

Read this original five-day science student textbook before completing the corresponding daily workbook PDFs. The teacher answer guide is separate. This text is Unit 1, not the complete year-long textbook.

Student Textbook Day 1: Energy Transfers

Read and Understand

Energy can move through a system and change form. A lamp transforms electrical energy into light and thermal energy.

Worked Example and Guided Practice

Draw arrows for the lamp’s energy input and outputs.

After reading, complete the Day 1 downloadable workbook questions independently.

Student Textbook Day 2: Measurement and Units

Read and Understand

Different instruments measure different quantities. A ruler measures length, a thermometer temperature and a stopwatch elapsed time.

Worked Example and Guided Practice

Match three measurements to instruments and suitable units.

After reading, complete the Day 2 downloadable workbook questions independently.

Student Textbook Day 3: Graphing Evidence

Read and Understand

Line graphs show quantities changing across time; bar charts often compare categories. All axes require clear labels and units.

Worked Example and Guided Practice

Interpret a change from 20 to 24 degrees Celsius as an increase of 4 degrees.

After reading, complete the Day 3 downloadable workbook questions independently.

Student Textbook Day 4: Safe Energy Investigation

Read and Understand

Change one planned factor and keep major conditions alike. Avoid exposed wiring and hot equipment, and use adult supervision.

Worked Example and Guided Practice

Plan a safe surface-temperature comparison and explain the controlled factors.

After reading, complete the Day 4 downloadable workbook questions independently.

Student Textbook Day 5: Independent Check

Read and Understand

Describe energy transfers, select tools, label units and interpret an unfamiliar graph.

Worked Example and Guided Practice

Identify a possible weakness in a claimed energy experiment.

After reading, complete the Day 5 downloadable workbook questions independently.

Unit Review

Review all five lessons with new examples. Record evidence and measurements accurately, distinguish observations from interpretations, and discuss errors with a teacher.