|This activity is designed to highlight
and review important concepts from Creating Energy. Please
answer the following questions in your activity journal
the Student Journal for Activity 1
1 - Energy and Oxygen
This exercise is designed
to help you understand what we mean by energy and the role that
oxygen has in releasing energy. Answer the following questions
on your activity journal sheet.
- What do we mean by
fuel? Think about gasoline in a car.
- What happens when
gasoline is burned inside the engine? What is in the
air that makes gasoline burn?
- What are the two forms
of energy that you get from burning gasoline in a car engine?
[Hints: Why is the hood of the car hot after you have
been driving a long time? Where does the force come
from that turns the wheels?]
- How is the burning
of gasoline in car engines similar to burning of glucose in
foods? [Hints: The chemical source of energy is similar.
The products of combustion are the same.]
- What is NOT the same
about the burning of gasoline in a car engine and burning
of glucose in foods? [Hints: Could your body stand the heat
of a car engine? How might the body adjust a fuel burning
process so that there would not be so much energy lost as
- What part of air does
our body need? Why do we need it?
- Why do animals that
live in low-oxygen environments, such as worms buried in the
earth or mud at the bottom of the ocean, have less bodily
activity than other animals.