K5 Learning
Why Does the Ocean have Waves?
Six short answer questions challenge scholars to show what they know after reading an informational text that examines waves—what they are, what causes them, and how different Earth factors affect their size and strength.
Curated OER
The Buoyancy Factor
Students examine why some objects float in water while others sink and the ability of something to float does not depend entirely on its weight. Archimedes' principle is introduced and buoyant force is discussed. Practice calculations...
Curated OER
Graphing Linear Equations with Two Variables
Can your class solve linear equations in two variables? They will be able to after they engage in this lesson. Individuals graph linear equations in two variables using slope and intercept and identifying the relationship between the x...
K12 Reader
Convection Currents
After reading a brief article on the connection between convection currents and winds, kids use information in the text to respond to a series of comprehension questions.