Name ______

Per_____

Station #1: Fun House Mirror
BE CARFUL WITH THE MIRROR, IF YOU DROP IT, IT WILL BREAK!
  • Hold the mirror at arms length so you can see your face
  • Slowly bring the mirror towards your face

  1. Write down some observations.

  1. Pick one of your observations and make an inference. An inference is a plausible scientific reason why the observed event occurred.

Station #2: Batteries and Bulbs
Try to light the bulb using the wire and the battery. The wires, batteries, and bulbs can get hot if they are connected for too long. Be careful!
  1. Using 2 wires
  2. Using only 1 wire
/ Draw a careful diagram of situation B.

Draw a careful diagram of situation A.
Station #3: Tuning Forks
Strike the tuning forks with mallet ONLY! They can be ruined if they hit any hard object.
  • Press the start button on the computer screen.
  • Strike the tuning fork with the mallet
  • Quickly place the tuning fork next to the microphone on the front left side of the monitor
  • Wait for the top and bottom of the curve to become visible then click the stop button
/ Diagram

  • Draw a picture of the resulting waveform here.

  1. Write down some observations.

  1. Why do you think the graph look like it does?

  1. Pick one of your observations and make an inference. An inference is a plausible scientific reason why the observed event occurred.

Station #4: Rubber Bullet
A rubber bullet and an aluminum bullet both have the same size, speed, and mass. They are fired at a block of wood. /
  1. Which is most likely to knock the block over, the rubber bullet, the aluminum bullet, or both the same?

  1. Why do you think so?

Station #5: The Psychedelic Computer
Do not try this on your home computers or TV’s. They can be easily damaged by magnetic fields.
  • Place the magnet next to the OLD computer monitor.
  • Move the magnet around.
  • Draw a diagram to illustrate what you see.
/ Diagram
  1. What causes the distorted image?

  1. Why do you think that the image is distorted?

Station #6: Dropping Bullet
At the same time that a high speed bullet is fired horizontally from a rifle, another bullet is simply dropped from the same height. /
  1. Which bullet strikes the ground first?

  1. Why do you think so? A diagram will help your answer.

Station #7: Echolocation
Do not allow the motion detector to tip over. Sudden force can break the device.
  • Stand in front of the motion detector.
  • If there is already a graph on the screen, click on the “Experiment” pull down menu and choose “Delete ALL data runs”
  • Have one of your group members push the “START” button on the computer screen.
  • Walk in front of the detector.
  • Click the “STOP” button
  • Draw a careful diagram of the resulting graph.
/ Diagram

*** IF THERE IS ALREADY DATA ON THE GRAPH, CLICK THE “EXPERIMENT” PULL DOWN MENU AND CHOOSE “DELETE ALL DATA RUNS.”
  1. Write down some observations

  1. Pick one of your observations and make an inference. An inference is a plausible scientific reason why the observed event occurred.

  1. What is echolocation?

Station #8: The Strong Man
When a strong man suspends the 10-lb telephone book with the rope held vertically, the tension in each hand is 5 lbs. /
  1. If the strong man could suspend the book from the strands pulled horizontally as shown, the tension in each strand would be about
  2. About 5 lbs
  3. About 10 lbs
  4. About 20 lbs
  5. More than a million lbs

  1. Why do you think so? A diagram will help your answer.

Station #9: Moving Tractor
DO NOT FORCE TRACTOR BY HAND!! This will break the motor
Do not allow the motion detector to tip over. Sudden force can break the device.
  • Move the switch on the side of the tractor in the direction you want the cart to move
  • Hold the tractor in front of the motion sensor above the surface. Make sure it has a clear distance in front of it to be able to move forward away from the sensor
  • Click the “START” button on the computer
  • Click the “STOP” button before the tractor falls off the end or runs into another object and stop the tractor
  • Record the data on the screen in the table on the right
  • AFTER answering the questions below, graph the data on a FULL piece of graph paper
/ Time (s) / Distance (m)
0
  • If there is data in the table, click the Run # in the left window on the computer screen then hit the “delete” key
  • When recording data, skip the first row shown on the computer screen and only fill in the row provided

Describe what you think a graph of time vs distance will like:
Describe the motion of the tractor in words:
Station #10: Rolling Car
Do not allow the motion detector to tip over. Sudden force can break the device. Do not drop the ramp after lifting
  • Place the car on the ramp in front of the motion detector
  • Click the “START” button on the computer
  • Release the car.
  • Click the “STOP” button when the car gets to the bottom and stop the car
  • Record the data on the screen in the table on the right
  • AFTER answering the questions below, graph the data on a FULL piece of graph paper
/ Time (s) / Distance (m)
0
  • If there is data in the table, click the Run # in the left window on the computer screen then hit the “delete” key
  • When recording data, skip the first row shown on the computer screen and only fill in the row provided

Describe what you think a graph of time vs distance will like:
Describe the motion of the car in words: