Year 8 Science · Unit 1 · Lesson 16
Foundation Worksheet
Learning Goals
Fill the gap
Choose the correct word from the word bank to complete each sentence. Two words will not be used.
The process of keeping important internal conditions within a suitable range so a living thing can function effectively is called .
Homeostasis does not mean conditions stay all the time. Instead, conditions stay within a some variation is normal and expected.
Two familiar examples of internal conditions that need to stay within a suitable range are and . If either changes too much, the living thing cannot effectively.
True or False? Fix the false ones
Circle T or F for each statement. If the statement is false, rewrite it correctly on the line below.
Homeostasis means the body stays exactly the same at every moment.
Correct it:
Body temperature is an example of an internal condition that needs to stay within a suitable range.
Correct it:
Only body temperature needs to stay stable, water balance does not matter for homeostasis.
Correct it:
Homeostasis is a systems idea, it depends on several parts of the organism working together, not one structure acting alone.
Correct it:
1. Write your own definition of homeostasis. Make sure you include the phrase "suitable range" and link it to the idea of effective function.
2. Give two examples of internal conditions mentioned in this lesson that need to stay within a suitable range. Explain why each one matters for the living thing.
Wrap Up
In one sentence, what was the main idea of this lesson?