Physics of Sound Then brainstorm how many things you “heard” between 5 am- 8 am

Linda Tisdale 4 th grade teacher Monte Sano Elementary 2. What is the most unusual thing you heard this morning? 1. How many sounds did you list?

Overview of Our Day Investigations 1&2 Guide Walkthrough Breaks Lunch Investigations 3

Foss Full Option Science System Investigations Assessment (rubrics) Websites TH-1 Literature TH-2

Alabama Course of Study Objective 2: Compare different pitches of sound produced by changing size, tension, amount, or type of vibrating material. Describe the relationship between the structure of the ear and hearing.

Science Notebooks Question/Problem/Purpose A hypothesis is a statement that provides an explanation (based on observations, evidence, and past experience) of an event or phenomenon. Procedure/Planning Results/Data/Observations Conclusion/What I Learned Next Steps/New Questions

Drop Challenge Terms: property & discrimination Question to investigate Using your notebook, predict how each object will sound. Complete the challenge and record your results. List the properties of each sound on the chart.

What’s the Science? Sounds have identifiable characteristics. Objects can be identified by the sound they make when dropped.

Foss Science Stories See Foss Science Stories, p Sound has properties that help you determine the identity of an object.

Part 2 Drop Codes What are some ways that people get information from sound? Can you use your drop objects and drop chamber to develop a code that can be used for communicating? Find Dropping In student sheet #3

What’s the Science? The identifiable properties of sounds can be used to make a code. Sounds can convey information.

Sound and Vibrations (Part 3) The Long Gong Door Fiddle Tone Generator Problem of the Week, etc.

Each group will set up each mini activity and rotate.

Vibration and Pitch (Investigation 2) How are high and low sounds made? Feel the side of your throat as you talk to your neighbor. Decide on a definition for the word pitch. Look at science stories for investigation 2. How can I change the pitch of the sound coming from the tongue depressor? Position the tongue depressor so it sticks off the table like a little diving board. Hold with the heel of your hand. Pluck the tongue depressor.

What’s the Science? Sound originates from vibrating sources. Pitch is how high or low a sound is. Differences in pitch are caused by the differences in the rate at which objects vibrate.

Slinky Activity What do we do? Stretch the slinky out on the floor to about 3 meters. The sound source (person 1) gives the slinky a push and the receiver (person 2) represents the ear. What’s going on? Each coil represents a molecule of a material. With a push, the coils compress against each other. The compression travels to the other end of the slinky as a wave. Energy is transmitted through the coils and travels from source to receiver.

Each group will set up each mini activity and rotate. What to make: Waterphone Xylophone Kalimba String Beam What’s the Science Long objects vibrate slowly and have a low pitch Short objects vibrate quickly and have a high pitch.

Investigation 3 Sound Vocabulary Activity Ear worksheet

Sound through Air, Water, and Wood Questions How is sound different when heard through air than when heard through water? How can we use the megaphone to amplify sounds in the room? How is sound different when heard through air than when heard through water? How is sound different when heard through solids? How is sound different when heard through wood? How to Explore Listening tube Megaphone

Take a look at the student sheets Follow the directions on student sheet 16 Then do WS 17 See extension (p.21)

Work cited Unitedstreaming.com Video for this PowerPoint is from United Streaming and was written by The Discovery Channel Foss Website BBC

Journal Entry Make a List 3 things I learned about the Physics of Sound. 2-WOWs (that really surprised me!) What is 1 question I still have? Lastly, list a star and wish for yourself.