TEKS Science Concepts—Lesson Checklist
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TEKS Lessons
Matter and energy
5.5A Classify matter based on physical properties, including mass, magnetism, physical state
(solid, liquid, and gas), relative density (sinking and floating), solubility in water, and the
ability to conduct or insulate thermal energy or electric energy
2.1 Classifying Matter
2.2 Measuring Length
2.3 Measuring Mass
2.4 Measuring Volume
2.5 Density
2.6 States of Matter
2.7 Boiling and
Freezing/Melting Points
2.8 Conductors and Insulators
2.9 Mixtures and Solutions
3.2 Electrical Energy
5.5B Identify the boiling and freezing/melting points of water on the Celsius scale 2.7 Boiling and
Freezing/Melting Points
5.5C Demonstrate that some mixtures maintain physical properties of their ingredients such as
iron filings and sand
2.9 Mixtures and Solutions
5.5D Identify changes that can occur in the physical properties of the ingredients of solutions
such as dissolving salt in water or adding lemon juice to water
2.9 Mixtures and Solutions
Force, motion, and energy
5.6A Explore the uses of energy, including mechanical, light, thermal, electrical, and sound
energy
3.1 Force and Motion
3.2 Electrical Energy
5.6B Demonstrate that the flow of electricity in circuits requires a complete path through which
an electric current can pass and can produce light, heat, and sound
2.8 Conductors and Insulators
3.2 Electrical Energy
5.6C Demonstrate that light travels in a straight line until it strikes an object or travels through
one medium to another and demonstrate that light can be reflected such as the use of
mirrors or other shiny surfaces and refracted such as the appearance of an object when
observed through water
3.3 Reflection and Refraction
of Light
5.6D Design an experiment that tests the effect of force on an object
3.1 Force and Motion
