Friday, November 14
Homework #1
We see with light handout (See me for handout) relating to questions below.
1. Can you see in a dark room? Why or why not?
2. Can you smell in a dark room?
3. Can you taste in a dark room?
4. Look around the room. What thing or things do you see that can make their own light?
5. What are 3 things you see that can't make their own light?
___________________________________________________________________
Monday, November 17
Homework #2
What is light? Handout. See me for handout related to questions below.
1. Give an example of how you use energy.
2. Does a model look just like the real thing?
3. If you were planning a trip, what model would you use?
4. What is a model you like to use?
5. What are two ways that light moves?
6. If you throw a ball, are you using energy?
___________________________________________________________________
Tuesday, November 18
Homework #3 (ALIGNED WITH MATH)
EXAMPLE :
WAVE SPEED EQUATION: WAVELENGTH (IN M) X FREQUENCY (IN Hz)
SPEED OF SOUND A sound wave produced by a lightning bolt has a frequency of 34 Hz and a wavelength of 10.0 m. What is the speed of the sound wave?
1) This is what you know:
● wavelength: 10 m
● frequency: 34 Hz
2) This is what you need to find
● wave speed: v = ? m/s
3) This is the procedure you need to use:
● Substitute the known values for wavelength and frequency into the speed equation and calculate the wave speed:
● v = (10.0m)(34Hz)
= 340m X Hz = 340m X (1/s) = 340m/s
4) Check your answer:
● Divide your answer by the wavelength 10.0m.
The result should be the given frequency 34 Hz.
PRACTICE --> Student Assignment
1 . Waves on a string have a wavelength of 0.55 m. If the frequency of the waves is 6.0 Hz, what is the wave speed?
2. If the frequency of a sound wave in water is 15,000 Hz, and the sound wave travels through water at a speed of 1,500 m/s, what is the wavelength?
___________________________________________________________________
Wednesday, November 19
Homework #4
1.) Explain how the spacing between coils of a spring changes if the amplitude of compressional waves traveling along the spring increases.
2.) What are 3-ways a wave can be described?
3.) What type of waves can travel through empty space?
4.) How would the wave length of waves traveling with the same speed change if the frequency of the wave increases?
___________________________________________________________________
Friday, November 21
Homework #5
A wave's amplitude is important. It is a measure of energy the wave carries. For example, the waves that make up bright light have greater amplitudes than the waves that make up dim lights. Waves of bright light carry more energy than the waves that make up dim light. In a similar way, loud sound waves have greater amplitudes than soft sound waves. Loud sounds carry more energy than soft sounds.
1. The amplitude of a wave can be measured from the (medium/crest) or the (trough, wavelength) to the rest position of the wave's medium.
2. Waves of bright light or loud sounds have (greater/less) amplitudes which means they carry (more/less) energy than dim light of soft sounds.
3. The wavelength of visible light determines its (color/shape). For example, the difference between red light and green light is that (red/green) light has longer wavelength.
4. The number of waves that pass a point in one (second/minute) is the wave's (amplitude/frequency).
5. Which noise from the sources have the greater amplitude? Bird or Drum?
Draw an example of a transverse wave and label the amplitude and wavelength.
From crest to crest there is a 2m measurement. From trough to trough there is a 2m measurement. From rest position to the trough or crest, there is a 1m measurement.
What is the wavelength of the wave?
What is the amplitude of the wave?
___________________________________________________________________
Monday, November 24
Homework #6
1.) Explain why you hear a sound when you clap your hands together.
2.) Compare and contract the sound waves produced by someone whispering and someone shouting.
3.) How many times louder is a sound wave with an intensity of 50dB than a sound wave with intensity of 20dB?
___________________________________________________________________
Tuesday, November 25
Homework #7
What are the parts of the ear and their functions...
1. outer ear -
function -
2. middle ear -
function -
3. inner ear -
function -
___________________________________________________________________
Wednesday, November 26
Homework #8
Take home Lab - Waves
/uploads/3/8/7/4/38744383/screen_shot_2014-12-01_at_11.07.47_pm.png
___________________________________________________________________
Tuesday, December 2
Homework #9
/uploads/3/8/7/4/38744383/homework_9_science_quarter_2.docx
___________________________________________________________________
Thursday, December 4
Homework #10
/uploads/3/8/7/4/38744383/science_hw_10.docx
** MONDAY DECEMBER 8 --> CHAPTER 8 EXAM
___________________________________________________________________
Wednesday, December 17
Homework #11
1.) What are the physical properties of a textbook?
2.) List the four states of matter. Describe and give an example of each.
3.) Explain why water may have 2 densities.
___________________________________________________________________
Thursday, December 18
Homework #12
1.) What is a chemical property?
2.) How would you know if a physical change occurred or a chemical change? Give 2 examples.
___________________________________________________________________
Friday, December 19
Homework #13
/uploads/3/8/7/4/38744383/science_hw_13.docx
___________________________________________________________________
Tuesday, January 6
Homework #14
1.) List 5 examples of matter and 5 examples that are not matter. Explain.
2.) Explain why the word atom was an appropriate term for Democritus's idea.
3.) Explain the law of conservation of matter using your own examples (Example given in class, fire burning wood)
4.) Draw and label a modern day atom. Drawing should include nucleus, protons, electrons, neutrons.
__________________________________________________________________
Thursday, January 8
Homework #15
1.) State if the following are physical changes/properties or chemical changes/properties:
a. Tarnishing? ____________change/property
b. Rusting? ___________change/property
c. Burning? _________ change/property
d. Melting? ________ change/property
e. Size? ________ change/property
f. Density? ________ change/property
g. Volume? ________ change/property
h. Flammability? ________ change/property
2.) What is conserved during any type of change?
3.) What are the properties of a physical change?
___________________________________________________________________
Friday, January 9
Homework #16
1.) Describe the difference between atomic number and atomic mass
2.) Define the term isotope. Explain how two isotopes of an element are different.
3.) Look up the elements Cs, Ne, Pb, and U. Identify their atomic numbers and atomic mass.
___________________________________________________________________
Monday, January 12
Homework #17
1.) List 3 examples of compounds and 3 examples of mixtures. Explain your choices IN FULL SENTENCES TO RECEIVE CREDIT.
2.) A container contains a mixture of sand, salt, and pebbles. How can each substance be separated from the others?
3.) Explain whether your breakfast was a compound, a homogenous mixture, or a heterogeneous mixture.
___________________________________________________________________
Tuesday, January 13
Homework #18
Create 3 questions based on chapter 8, 9 and 10. (Chapter 8 --> waves, sound and light. Chapter 9 --> Matter and its changes. Chapter 10 --> Atoms, Elements, and the Periodic Table). ** Make sure you know the answers to each of these questions, you will be testing your classmates.
___________________________________________________________________
Tuesday, January 20
Homework #19
1.) Explain how Wegener used climate clues to support his hypothesis of continental drift.
2.) Describe how rock clues were used to support the hypothesis of continental drift.
3.) Why would you expect to see similar rocks and rock structure on two landmasses that were connected at one time?
4.) Explain how the ages of the rocks on the ocean floor support the theory of seafloor spreading.
5.) The ideas of Hess, Wegener, and others emphasize that Earth is a dynamic planet. How is seafloor spreading different from continental drift?
___________________________________________________________________
Wednesday, January 21
Homework #20
1.) Describe what occurs at plate boundaries that are associated with seafloor spreading.
2.) Describe three types of plate boundaries where volcanic eruptions occur.
3.) Explain how convection currents are related to plate tectonics.
___________________________________________________________________
Friday, January 23
Homework #21
Take home exam Chapter 6 & 7. (CLICK HERE)
SCIENCE QUARTERLY (#2) - WEDNESDAY 1/28/15
At this point students should be studying and making up missing assignments due 1/30/2015
Homework #1
We see with light handout (See me for handout) relating to questions below.
1. Can you see in a dark room? Why or why not?
2. Can you smell in a dark room?
3. Can you taste in a dark room?
4. Look around the room. What thing or things do you see that can make their own light?
5. What are 3 things you see that can't make their own light?
___________________________________________________________________
Monday, November 17
Homework #2
What is light? Handout. See me for handout related to questions below.
1. Give an example of how you use energy.
2. Does a model look just like the real thing?
3. If you were planning a trip, what model would you use?
4. What is a model you like to use?
5. What are two ways that light moves?
6. If you throw a ball, are you using energy?
___________________________________________________________________
Tuesday, November 18
Homework #3 (ALIGNED WITH MATH)
EXAMPLE :
WAVE SPEED EQUATION: WAVELENGTH (IN M) X FREQUENCY (IN Hz)
SPEED OF SOUND A sound wave produced by a lightning bolt has a frequency of 34 Hz and a wavelength of 10.0 m. What is the speed of the sound wave?
1) This is what you know:
● wavelength: 10 m
● frequency: 34 Hz
2) This is what you need to find
● wave speed: v = ? m/s
3) This is the procedure you need to use:
● Substitute the known values for wavelength and frequency into the speed equation and calculate the wave speed:
● v = (10.0m)(34Hz)
= 340m X Hz = 340m X (1/s) = 340m/s
4) Check your answer:
● Divide your answer by the wavelength 10.0m.
The result should be the given frequency 34 Hz.
PRACTICE --> Student Assignment
1 . Waves on a string have a wavelength of 0.55 m. If the frequency of the waves is 6.0 Hz, what is the wave speed?
2. If the frequency of a sound wave in water is 15,000 Hz, and the sound wave travels through water at a speed of 1,500 m/s, what is the wavelength?
___________________________________________________________________
Wednesday, November 19
Homework #4
1.) Explain how the spacing between coils of a spring changes if the amplitude of compressional waves traveling along the spring increases.
2.) What are 3-ways a wave can be described?
3.) What type of waves can travel through empty space?
4.) How would the wave length of waves traveling with the same speed change if the frequency of the wave increases?
___________________________________________________________________
Friday, November 21
Homework #5
A wave's amplitude is important. It is a measure of energy the wave carries. For example, the waves that make up bright light have greater amplitudes than the waves that make up dim lights. Waves of bright light carry more energy than the waves that make up dim light. In a similar way, loud sound waves have greater amplitudes than soft sound waves. Loud sounds carry more energy than soft sounds.
1. The amplitude of a wave can be measured from the (medium/crest) or the (trough, wavelength) to the rest position of the wave's medium.
2. Waves of bright light or loud sounds have (greater/less) amplitudes which means they carry (more/less) energy than dim light of soft sounds.
3. The wavelength of visible light determines its (color/shape). For example, the difference between red light and green light is that (red/green) light has longer wavelength.
4. The number of waves that pass a point in one (second/minute) is the wave's (amplitude/frequency).
5. Which noise from the sources have the greater amplitude? Bird or Drum?
Draw an example of a transverse wave and label the amplitude and wavelength.
From crest to crest there is a 2m measurement. From trough to trough there is a 2m measurement. From rest position to the trough or crest, there is a 1m measurement.
What is the wavelength of the wave?
What is the amplitude of the wave?
___________________________________________________________________
Monday, November 24
Homework #6
1.) Explain why you hear a sound when you clap your hands together.
2.) Compare and contract the sound waves produced by someone whispering and someone shouting.
3.) How many times louder is a sound wave with an intensity of 50dB than a sound wave with intensity of 20dB?
___________________________________________________________________
Tuesday, November 25
Homework #7
What are the parts of the ear and their functions...
1. outer ear -
function -
2. middle ear -
function -
3. inner ear -
function -
___________________________________________________________________
Wednesday, November 26
Homework #8
Take home Lab - Waves
/uploads/3/8/7/4/38744383/screen_shot_2014-12-01_at_11.07.47_pm.png
___________________________________________________________________
Tuesday, December 2
Homework #9
/uploads/3/8/7/4/38744383/homework_9_science_quarter_2.docx
___________________________________________________________________
Thursday, December 4
Homework #10
/uploads/3/8/7/4/38744383/science_hw_10.docx
** MONDAY DECEMBER 8 --> CHAPTER 8 EXAM
___________________________________________________________________
Wednesday, December 17
Homework #11
1.) What are the physical properties of a textbook?
2.) List the four states of matter. Describe and give an example of each.
3.) Explain why water may have 2 densities.
___________________________________________________________________
Thursday, December 18
Homework #12
1.) What is a chemical property?
2.) How would you know if a physical change occurred or a chemical change? Give 2 examples.
___________________________________________________________________
Friday, December 19
Homework #13
/uploads/3/8/7/4/38744383/science_hw_13.docx
___________________________________________________________________
Tuesday, January 6
Homework #14
1.) List 5 examples of matter and 5 examples that are not matter. Explain.
2.) Explain why the word atom was an appropriate term for Democritus's idea.
3.) Explain the law of conservation of matter using your own examples (Example given in class, fire burning wood)
4.) Draw and label a modern day atom. Drawing should include nucleus, protons, electrons, neutrons.
__________________________________________________________________
Thursday, January 8
Homework #15
1.) State if the following are physical changes/properties or chemical changes/properties:
a. Tarnishing? ____________change/property
b. Rusting? ___________change/property
c. Burning? _________ change/property
d. Melting? ________ change/property
e. Size? ________ change/property
f. Density? ________ change/property
g. Volume? ________ change/property
h. Flammability? ________ change/property
2.) What is conserved during any type of change?
3.) What are the properties of a physical change?
___________________________________________________________________
Friday, January 9
Homework #16
1.) Describe the difference between atomic number and atomic mass
2.) Define the term isotope. Explain how two isotopes of an element are different.
3.) Look up the elements Cs, Ne, Pb, and U. Identify their atomic numbers and atomic mass.
___________________________________________________________________
Monday, January 12
Homework #17
1.) List 3 examples of compounds and 3 examples of mixtures. Explain your choices IN FULL SENTENCES TO RECEIVE CREDIT.
2.) A container contains a mixture of sand, salt, and pebbles. How can each substance be separated from the others?
3.) Explain whether your breakfast was a compound, a homogenous mixture, or a heterogeneous mixture.
___________________________________________________________________
Tuesday, January 13
Homework #18
Create 3 questions based on chapter 8, 9 and 10. (Chapter 8 --> waves, sound and light. Chapter 9 --> Matter and its changes. Chapter 10 --> Atoms, Elements, and the Periodic Table). ** Make sure you know the answers to each of these questions, you will be testing your classmates.
___________________________________________________________________
Tuesday, January 20
Homework #19
1.) Explain how Wegener used climate clues to support his hypothesis of continental drift.
2.) Describe how rock clues were used to support the hypothesis of continental drift.
3.) Why would you expect to see similar rocks and rock structure on two landmasses that were connected at one time?
4.) Explain how the ages of the rocks on the ocean floor support the theory of seafloor spreading.
5.) The ideas of Hess, Wegener, and others emphasize that Earth is a dynamic planet. How is seafloor spreading different from continental drift?
___________________________________________________________________
Wednesday, January 21
Homework #20
1.) Describe what occurs at plate boundaries that are associated with seafloor spreading.
2.) Describe three types of plate boundaries where volcanic eruptions occur.
3.) Explain how convection currents are related to plate tectonics.
___________________________________________________________________
Friday, January 23
Homework #21
Take home exam Chapter 6 & 7. (CLICK HERE)
SCIENCE QUARTERLY (#2) - WEDNESDAY 1/28/15
At this point students should be studying and making up missing assignments due 1/30/2015