A 60 minute lesson in which students will identify why living things need oxygen.
Complete the breathing activity on slide 5 of the Living Things Need Oxygen PowerPoint. Encourage the students to share their observations of how their bodies moved during the activity.
Define oxygen and discuss why living things need it to survive, as outlined on slide 6.
Identify the importance of trees in providing living things with oxygen by watching the Behind The News Tree Day video on YouTube. Ask the students:
Why are trees important?
What might happen if there were no trees?
How can we protect trees in our environment?
Explain the oxygen cycle, as outlined on slide 7. Define the term ‘photosynthesis’ for the students using simple words and phrases.
Display the independent activity on slide 8 and provide the students with a copy of The Oxygen Cycle – Worksheet. Read through the instructions with the class and answer any questions the students may have.
Monitor and support the students as they complete the activity. Once the students have finished, discuss the correct sequence of the oxygen cycle as a class.
Ask students to volunteer to role play the oxygen cycle for the class. Students will be needed to play the roles of:
a living thing
Encourage fast finishes to independently research the concept of photosynthesis.
Allow students who are finding the sequencing activity challenging to work in a small group with the support of a teacher or teacher aide.