Flight outcomes

Junior science

At the end of this unit of work students must be able to:
History of flight  
- explain how a hot air balloon works using the word buoyancy and density. Link
- be able to devise a simple experiment to measure the buoyant force exerted on a floating or submerged object. Link

- give a brief, historical account of the evolution of flight, from the advent of hot air balloons to the V2 rocket.

Bernoulli's Law
- describe Bernoulli's law. Link
- using Bernoulli's law, explain how a wing generates lift. Link
- use Bernoulli's law to explain a given set of every day situations, such as how a chimney works or how air pressure blows the roof off a house during high winds. Link
-demonstrate an understanding of Bernoulli's law by completing an assignment.
Newton's 3rd Law of Motion
- explain Newton's Third Law of Motion Link
- use Newton's Third Law of Motion to describe how a propeller plane produces thrust.


- use Newton's Third Law of Motion to describe how a rocket engine produces thrust. Link
- describe the forces acting on a plane as lift, thrust, drag and gravity and explain how each force is generated. Link
- describe how the forces acting on a model rocket change as it launches skyward.
Click for a printable copy.
- describe a force as a push or pull. Link
- recall that forces act in pairs and identify some of the pairs of forces acting on a plane and a rocket. Link
- recall that change occurs when forces become unbalanced and give examples of such imbalances during rocket launches or when planes take off. Link
- recall that force = mass X acceleration and explain that an object traveling with a constant velocity has no net force acting on it. Link
- read from a velocity vs time graph and identify the time interval in which acceleration is taking place and therefore a force is acting on the object.
- recall the Law of Conservation of Energy Link
- recall with examples some of the different types of energies. Energies such as heat energy, chemical potential energy, gravitational potential energy and kinetic energy. Link

- explain the transformation of energies during a typical model rocket launch
Click for a printable copy.

- identify chemical potential energy as the source of energy for all rocket launches Link

Building a hot air balloon
Building a glider
Building a propeller plane
Building a model rocket
Building a Boost Glider
Construction of a density toy.
Construction of a Cartesian diver


Air pressure crushing a can
Boiling temperature and air pressure
Balancing ball
Giant marshmallows

Revision assignment



Revision test
Year 8 Workbook