Texas TEKS 5.8

5.8 is a TEKS knowledge and skills statement. These are the student expectations under it.

• 5.8.A

  investigate and describe the transformation of energy in systems such as energy in a flashlight battery that changes from chemical energy to electrical energy t...

• 5.8.B

  demonstrate that electrical energy in complete circuits can be transformed into motion, light, sound, or thermal energy and identify the requirements for a func...

• 5.8.C

  demonstrate and explain how light travels in a straight line and can be reflected, refracted, or absorbed.

01

What Students Need to Do

Students trace energy changes through a system, such as chemical energy in a battery becoming electrical energy and then light. They build complete circuits that produce motion, light, sound, or heat. They show that light travels straight until it is reflected, refracted, or absorbed.

02

What Mastery Looks Like

A student can build a working circuit and identify the battery, closed path, conductors, and output device. They can label each energy change in a flashlight or circuit. They can draw accurate light paths through mirrors, water, and dark materials.

03

Common Misconceptions

Students may think a battery stores electrical energy rather than chemical energy. They may expect a circuit to work with a gap or only one wire connected. They often confuse refraction with reflection or think light curves before reaching a material.

04

How to Assess It

Exit ticket: Draw a complete circuit that makes a buzzer sound, and label the energy changes. Add light rays meeting a mirror, water, and black paper, then label each result.

1. 01

   Shine a flashlight at a mirror, cup of water, and black paper, then trace and label reflection, refraction, and absorption.

2. 02

   Write how energy changes in a flashlight, naming the chemical, electrical, and light energy in order.

3. 03

   Play circuit detective with diagram cards, sorting them into working and nonworking sets and explaining each choice.

4. 04

   Inspect a bicycle light and rear reflector, then explain how each uses energy transformation or reflected light to improve safety.

• K.8

  Force, motion, and energy. The student knows that energy is everywhere and can be observed in everyday life. The student is expected to:

• 3.8

  The 3rd Grade version of this standard.

• 4.8

  The 4th Grade version of this standard.

• 2.8

  Force, motion, and energy. The student knows that energy is everywhere and can be observed in everyday life. The student is expected to: