Ninth graders learn homeostasis — how the body maintains a stable internal environment despite outside changes — through feedback loops that regulate temperature, blood sugar, and more.
Students will be able to…
Whether it’s freezing or scorching outside, your body temperature stays near 37°C. How does the body constantly sense and correct itself to stay in balance?
Project this and sort each body response by whether it happens when the body is too HOT or too COLD — both keep you in balance!
Tap any phase to open the teacher moves and student actions.
Freezing or scorching outside, your body stays near 37°C — how?
Students investigate.
Students explain.
Students elaborate.
Students conclude.
Aligned to the Next Generation Science Standards (High School Life Science).
Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.
Develop a model of how body systems interact.
Explain the functions of body systems.
Planning and carrying out investigations.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students diagram how the body uses feedback to keep blood sugar balanced after a meal (insulin) and between meals. A printable homeostasis sheet is in the Science library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.