The Three Laws Of Forces

1. An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

2.Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

3. For every action there is an equal and opposite re-action.

Aim: To make a helicopter and look at the force of gravity.

Hypothesis: The size of the wings will effect the speed that the helicopter travels.

Equipment:

1. Stopwatch - use the Google stopwatch on your chromebook
2. Helicopter template / paper
3. Drawing pin

Method:

1. Make the helicopter by cutting out the template.
2. Drop the helicopter from a height. Use the same person.
3. Time each drop and record the time when it hits the floor.
4. Each time it is dropped you will make a change to its form.

• With a paperclip on the bottom.
• Use heavier material ( Cardboard)
• Cut the body in half to give it a short body.
• Cut the wings to give it short wings

1. Time each time you drop it.
2. Record the findings on a chart

Type	Time
Paperclip
Cardboard
Short wings
short body

Findings: What do the findings from your four flights say? Write about them.

Summary: What was the best result? ( The longest time will be the best. )

Paper:1.43

Cardboard:1.23

what I thought would happen:
the paper will spin slower and to slower it spins the slower it goes down.
the cardboard will spin faster and its rotor is angled makes it go down fatser

Paper planes

Thrust
Lift
Gravity
Drag

• Need to increase the thrust - to do this, i will throw harder.
• Reduced drag 
• Change air flow - add ailerons

1. Write up the experiment using the Scientific method
2. Record your findings on the chart
3. Take a photo of all your planes and upload them onto your blog
4. Graph the results in a bar graph.

Plane	Distance
Glider
Jet
Cruiser
Round wing

round wing 4.41 meters

cruiser

the case of the barefoot bulgar

The case of the Barefoot Burglar

http://www.cyberbee.com/whodunnit/crimescene.html

In groups of 4 or five you are going to need to use your forensic knowledge to solve a crime.
Using the clues found at the crime scene, determine which of the four suspects is the "barefooted burglar"? 
What do you think was the motive for this crime? 
Write the results of your findings and convince a jury of your peers.

At approximately 7:15 a.m., Friday morning, Mrs. King, the science teacher, thought something was fishy as she walked down the hall and noticed that her door was open. She walked into her classroom and immediately discovered that the small aquarium had been broken and her prized gold fish were gasping in the sink. Beside the broken aquarium were the shattered remains of the pink piggy bank that had been on the shelf above the aquarium. A can of blue paint was spilled on the floor. Footprints of a barefooted burglar led to an open window. Bits of a white powdery substance were found next to the broken, empty, piggy bank. The only other item found was a half-eaten large chunk of chocolate candy.

When the police arrived they immediately began to gather forensic evidence.Sticky fingerprints were lifted from the aquarium and piggy bank. The painted footprints were measured. The chunk of chocolate candy was collected for examination. It appeared there were teeth imprints.

The white powdery substance by the piggy bank was carefully placed in a plastic bag and taken to the forensic chemist for identification .

Unknown suspects info:

height 175

closest is dan the man 

ate chocolate and left large teeth marks

dan the man for having beaver like teeth.