Energy, Heat, Light, and Sound


Printed Unit + PDF Download



Physical unit 

  • High-quality, full-color pages
  • Printed single-sided on 80-lb coated paper 
  • Science units are not spiral-bound because so many pages need to be cut, removed, or copied

Complete PDF download

  • Digital copy of full unit for optional printing of consumable pages or copies for multiple children in the same household

Please note: free PDF only available with physical purchase. If you choose to return an unwanted unit or cancel an order, you will be charged the full amount for the PDF file; only the physical portion is refundable.

Print-at-Home PDF


You will receive a link to download the complete PDF science unit for self-printing. All PDF materials are for use within your family or school group and cannot be shared or distributed to others. 

Friendly Reminder: Downloads are always final sales and cannot be refunded if you later choose to purchase the printed unit.


In this 84-page unit, the goal is for children to understand heat, light, and sound as gifts from God and essential parts of life on earth. Including mini books, informational texts, and many exciting hands-on experiments and projects, this unit will have your little scientist asking for more! Plus, bonus informational texts and assignments for children grades 7–8 are included, making this a great unit for the whole family. Note: It is recommended that you complete the Introduction to Energy unit first.

Lesson 1 – What is Heat?
Lesson 2 – The Sun: Heat & Light Source
Lesson 3 – Heat Sources and Production
Lesson 4 – Heat Transfer
Lesson 5 – Heat Transfer Continued
Lesson 6 – Heat Conductors and Insulators
Lesson 7 – Temperature
Lesson 8 – What Is Light?
Lesson 9 – Light and Shadows
Lesson 10 – Reflection, Refraction, and Absorption
Lesson 11 – Light and Color
Lesson 12 – Sound
Lesson 13 – Volume and Pitch
Lesson 14 – Unit Project

Other topics covered within the lessons include: properties of heat; conduction, convection, and radiation; properties of light; reflection and refraction; the visible light spectrum; and properties of sound including production, pitch, and volume.

Christian Worldview

Read about our general Christian worldview that does not contain doctrine specific to any Christian denomination.
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