Class Investigation

Make a catapult ?

Catapult

Carry out experiments on water and share them with the world

http://water.chemistry2011.org/web/iyc/home

To build a raft measuring not more than 25cm x 15cm x 10cm with the best ability to support the most mass

Rubric

  1. Introduction ( /10)
    1. What are you to do (2)
    2. what are the goals of the task, what do you think you have achieve (2)
    3. make a list of the tasks you need to carry out (2)
    4. Sources of Reference (any books, people or websites you consulted) (4)
  2. List of Apparatus you require (5)
  3. Diagram (5) Labelled (5)
  4. Name the Risks and describe the Precautions to be taken ( /10)
  5. Explanation as to why you think it will work ( /20)
  6. The actual RAFT ( /15)
  7. The result,
    1. up to 10 marks for the best
  8. Conclusion (25) your explanation as to why you think what happened happened

TASK: Build a structure out of 25 straws and 1 metre of sellotape to support the weight of a marble at the maximum possible vertical height above the bench.

NOTE ¯ The marble may not be sellotaped on. ¯ The structure may not be sellotaped to the bench.

Title

To Build and Test a device that will help an Egg withstand a drop of 5m,

The device must be not larger than 6000 cm3 or have a mass > 400g

look at this download the spec sheet from the right hand side, this is from the European Space Agency.

EGGNAUT, how to land a space craft!

http://www.esa.int/SPECIALS/Education/SEMZNI3Z2OF_0.html

Kids sacrifice 27 eggs for science

ST. CLAIR SHORES, Mich., Oct. 3 (UPI) -- A Detroit-area class of sixth graders has learned from first-drop experience how to prevent an egg from breaking when it's dropped 30 feet.

The 27 students of Avalon Elementary School in St. Clair Shores, Mich., were given two weeks by science teacher Paul Rossi to devise a protective system to prevent eggs from breaking, the Detroit News said.

The students' objective was to build a container that would cushion the impact of being dropped from the top of 20-foot bleachers.

One disposable plastic food container filled with facial tissue and cotton batting didn't do the job, while another cardboard box containing crumpled plastic shopping bags and Styrofoam packing chips attached to a parachute preserved the egg.

Rossi told the students the egg's outcome didn't affect their grade much.

"Whether or not the egg survives is only worth 10 points, so if the egg breaks, students can still get a B on the project," he said, adding only about half of the eggs broke.

Rubric

The Investigation in how to help an egg survive a large drop shall be graded as follows

  1. Introduction ( /10)
    1. What are you to do (2)
    2. what are the goals of the task, what do you think you have achieve (2)
    3. make a list of the tasks you need to carry out (2)
    4. Sources of Reference (any books, people or websites you consulted) (4)
  2. List of Apparatus you require (5)
  3. Diagram (5) Labelled (5)
  4. Name the Risks and describe the Precautions to be taken ( /10)
  5. Explanation as to why you think it will work ( /20)
  6. The actual egg cradle ( /15)
  7. The result,
    1. 3 Eggs remains intact (10)
    2. All spillages remain within cradle(8)
    3. 2 Eggs remain intact (6)
    4. 1 Egg survives (4)
    5. At least it fell! (2)
  8. Conclusion (25) your explanation as to why you think what happened happened

Final Grade based on Total!

ideas

How long can an A4 sheet of paper stay in the air?