Science Classroom Connection

Students: Congratulations to 17 of you who earned an “A” and 18 of you earned a “B” on this test. There were a bunch of “C’s” as well. Many of you are heading in the right direction.

Avoid giving up, as we enter the home stretch with actual five weeks left of learning new material.

In case you were absent today, we practiced further for our unit test on Wednesday, tomorrow, on our Sound Unit by answering and correcting the chapter review pages 54-55 in the textbook that the classroom teacher shared with each of you several weeks ago.

If you still did not know that, check your email or touch base with other students in your class period.

Students: As was mentioned earlier this week, we will be having the Unit 3 Test on sound and its characteristics this coming Wednesday, April 24, 2019.

Make sure that you have reviewed your study guide that was posted on Wednesday, April 17, 2019 on the iblog, and passed out in class on Thursday, April 18, 2019.

If time permits, we will briefly go over some of the questions on Tuesday, the day before the test.

Here is a collection of the short videos that we have observed and discussed in class throughout our study of sound. Also, a few new videos have been added for further reinforcement.

How a tsunami occurs:

https://www.youtube.com/watch?v=Wx9vPv-T51I&vl=en

Waves:

https://www.youtube.com/watch?v=SCtf-z4t9L8&feature=youtu.be  

Vacuum:

https://www.youtube.com/watch?v=fxLY1SGXV_E

Field Experiment:

https://www.youtube.com/watch?v=q9ezMbDpIHI

Telephone:

https://www.youtube.com/watch?v=XCu6L4kQF3k

Music Bottles:

https://www.youtube.com/watch?v=9v8LohzTNLU

How a tsunami occurs:

https://www.youtube.com/watch?v=Wx9vPv-T51I&vl=en

Loud Noises:

https://drive.google.com/file/d/0B7lVLuFpIHGJVUY5dUFPNzJZM0E/view

Tuning Fork:

https://www.youtube.com/watch?v=h1H_GaajDak&t=2s

Tuning Fork Slowmo:

https://www.youtube.com/watch?v=VCERs0v1OoI  

Oscilloscope:

https://www.physics-chemistry-interactive-flash-animation.com/electricity_electromagnetism_interactive/oscilloscope_description_tutorial_sounds_frequency.htm  
Waves:

https://www.youtube.com/watch?v=SCtf-z4t9L8&feature=youtu.be  

Medium:

https://www.youtube.com/watch?v=Q3oItpVa9fs&feature=youtu.be

Vacuum:

https://www.youtube.com/watch?v=fxLY1SGXV_E

No sound in space:

https://www.youtube.com/watch?v=MqF3pPU1Z4U&feature=youtu.be

Field Experiment:

https://www.youtube.com/watch?v=q9ezMbDpIHI

Analog vs Digital:

https://www.brainpop.com/technology/scienceandindustry/analoganddigitalrecording/

Answer the following questions to be prepared for our Unit Sound Test next week on Tuesday, April 23, 2019.

1. Explain how & why adding different amounts of water in a glass bottle changes the pitch when blowing across the top of bottle.
2. Explain how & why adding different amounts of water in a glass bottle changes the pitch when tapping the bottle with a marker.
3. Label each part of a wave (wavelength, crest, trough, amplitude, resting point)
4. Label oscilloscope graphs according to: loudness, pitch, frequency, amplitude, wavelength
5. Draw to change the amplitudes and frequencies of graphs
6. Describe in detail how auto-tune works when the pitch needs to be higher
7. Describe in detail how auto-tune works when the pitch needs to be lower
8. Identify wave pulses, standing waves, longitudinal waves
9. Discuss the amplitude and frequency of each of the waves in #8
10. Identify the parts of the outer, inner, and middle ear
11. Discuss the function of the parts of the ear
12. Describe how loud sounds affect hearing
13. Identify & correct true and false statements concerning how waves move through different mediums(disturbance, electromagnetic, gas, liquid, mechanical, solid, sound, vacuum, vibration)
14. Create if / then statements between: loudness, pitch, frequency, amplitude, wavelength
15. Explain how a tsunami begins, rises, and ends
16. Explain how waves travel through different mediums using video, text, or lab evidence
17. Identify analog and digital signals
18. Identify analog and digital items
19. List advantages and disadvantages of analog signals
20. List advantages and disadvantages of digital signals
21. Sketch difference between how cell phones and wired phones send signals (extra)

Students: If you were absent, here is the attached work from Monday and Tuesday, April 15 and 16, 2019.

Waves through a Vacuum Activity

Students: The ISN test scores have been posted.

We are doing better than before.

Overall, there were 24 A’s and 11 B’s with a bunch of C’s. The latter group, the C’s, needs to put more effort into their classwork to accomplish better results in the future.

Watch the video again if needed to complete answering the questions from yesterday’s posting on the iblog.

Tsunami Questions

1. Where do waves normally get their energy?
2. Where to tsunamis get their energy?
3. Describe how a tsunami is formed.
4. How fast do tsunamis move?
5. Describe wave shoaling
6. What the translation of the word tsunami?
7. Where did the 2004 tsunami occur?
8. How can we protect ourselves from tsunamis?
9. Do these methods work 100%?
10. Now what are scientists working on to help?

Students: It’s been decided that your homework assignment on the foldable for the states of matter will be scored as five (5) summative points. Remember that your illustrations need to show how the sound wave is different in each of the states of matter. Re-read the assignment below:

• Design a colorful foldable with illustrations, labels, and annotations that shows the difference between sound waves traveling through a solid, liquid, gas, and vacuum
• Include molecules in your models.

Sound:

1. What is a medium?
2. What are some examples?
3. How did changing the water affect the pitch?
4. What is a vacuum?
5. How do we hear?
6. What can damage our hearing?

Applications of sound waves:

1. Echolocation
2. Sonar
3. Ultrasound (sonography)
4. Loud or Quiet?
5. Depends on amplitude or frequency?
6. High pitch or low pitch?
7. Depends on amplitude or frequency?
8. Describe how auto tune changes sound
9. Label each part of the wave

Tsunami Questions (This Thursday’s assignment based on the classroom video)

1. Where do waves normally get their energy?
2. Where to tsunamis get their energy?
3. Describe how a tsunami is formed.
4. How fast do tsunamis move?
5. Describe wave shoaling
6. What the translation of the word tsunami?
7. Where did the 2004 tsunami occur?
8. How can we protect ourselves from tsunamis?
9. Do these methods work 100%?
10. Now what are scientists working on to help?