PTT:
1) Turn to the 2nd section of your notebook - title the first page "2nd semester"
2) Get a new table of contents out of the basket.
3) Flip to the next page (a left hand page) and tape the table of contents to that page in your science notebook - fill it out as on the board.
4) Number this page 72
5) Number the following pages until you get to page 91.
6) On p. 73, write the title "Electricity." We will fill out this page with little images as we go through the unit.
Task 1: The Forms of Energy
1) Turn to p. 74 and record the date.
2) Write the goal at the top of the page. Goal Q - What are the different forms of energy?
3) Write a big title on the page (feel free to take up several lines) Title -Forms of Energy
4) Draw 8 boxes - one for each form of energy
5) Record a title in each box from the following list: Heat, Electrical, Sound, Light, Solar, Kinetic (motion), Chemical, Potential (stored)
6) Draw a picture/symbol in each box that represents that form of energy. Use color in your drawings.
7) Consider this: Energy can be transferred (moved) and changed (transformed) from type to type. For example, a flashlight battery has chemical energy which is transformed into electrical energy in the flashlight circuits and then light energy that radiates from the bulb.
Task 2: Transferring Charge Demo
1) Record this at the top of page 75: Goal Q - What is static electricity, and how can we experience it?
2) Title the page: Transferring Charge Demonstration
3) While we have the demonstration, draw a diagram that represents what you see. Good diagrams are accurate, big, colorful, and detailed. Be sure to label the "Van der Graaf Generator," the "Leyden Jar," and the "Electroscope."
4) Once the demo is over, discuss with your partners what you saw; then we will discuss with the class.
5) Write a paragraph that explain WHAT happened and WHY you think that happened. Be sure to use the types of charging that were involved.
Task 3: Set up page for tomorrow's lab (7 minutes)
1) Record the title (Lab: Static Electricity) and date (W19, D2) at the top of page 76
2) Record these chemistry review notes at the top of the page: Notes: Protons have a positive (+) charge Electrons have a negative (-) charge. Atoms are usually neutral (no charge). Different charges attract (pull towards each other). Same or "like" charges repel (push away from each other). Charged objects attract objects with no charge.
3) Record the sentence starter for the hypothesis. Do NOT complete the sentence yet. Hypothesis: If an object has no charge, then it can become charged by...
4) Make a chart for your observations. Leave several blank lines so that you can describe what you see at each station. Observations:
Station #
Observations and Descriptions
1
2
3
4
5
Closure (5 minutes):
On a sticky note, write a sentence that explains what you think static electricity is, and leave that on the door on your way out of class. I think static electricity is...
Week 19, Day 2
PTT: 1) Turn to page 76 in your science notebook 2) Make sure your page is set up (see task 3 from yesterday if it is not) 3) Complete the hypothesis sentence with electricity in mind: If an object has no charge, then it can become charged by...
Task 1: Lab - Exploring Static Electricity Here are the directions for the lab. Be sure to record observations at each station - Example: when we did [blah], then [blah blah blah] happened.
Procedure:
Station 1: Balloons and Hair (CHARGING BY FRICTION) 1) Rub the inflated balloon vigorously back and forth across one group member’s hair. 2) Record what happened to the group member’s hair. 3) Touch the balloon to one of the side walls and let go of it (try a few surfaces if you have time). 4) Record what happened when you placed the balloon to the wall.
Station 2: Charged Rod and Water 1) Turn on the faucet so that the water runs out in a small, steady stream. 2) Rub the rod with the piece of fabric to “charge” it. (CHARGING BY FRICTION)
3) Bring the rubbed end of the rod near the water (do NOT touch it) and observe how the water behaves. 4) Record what happened in your chart.
Station 3: Styrofoam and Charged Rod
1) Place some tiny scraps of styrofoam on the lab desk.
2) Rub the rod with the piece of fabric to charge it. (CHARGING BY FRICTION)
3) Slowly bring the rubbed end of the rod near the styrofoam.
4) Record what happened in your chart.
5) Try rubbing the rod longer. Does this make a difference in how much the styrofoam moves? Record this in your chart.
Station 4: Balloons 1) Rub the balloon against a group member’s hair to charge it. (CHARGING BY FRICTION) 2) Move the charged balloon towards the other balloon. 3) See what happens to the other balloon. Record what happens in your chart. 4) Now charge both balloons. 5) Put them next to each other to see what happens. 6) Record what happens in your chart.
Station 5: Van der Graaf Generator and Leyden Jar 1) Plug in the Van der Graaf Generator. 2) Hold the Leyden Jar near the Van der Graaf Generator. 3) Observe what happens, and record this in your chart. 4) Talk to your partners: is this CHARGING BY INDUCTION or CHARGING BY CONDUCTION? Why? Record this in your chart. 5) When done, make sure to discharge the Leyden Jar and unplug the Van der Graaf Generator.
Station 6: Electroscope 1) Take a look at the electroscope. What does it look like? 2) Take a balloon and charge it by friction. 3) Hold the balloon near the electroscope and observe what happens. 4) Touch the balloon to the electroscope and observe what happens. 5) Record your observations in your chart. 6) When you are done, touch the metal ball on the electroscope to discharge it by transferring the charge to you (CHARGING BY CONDUCTION).
Task 2: Lab Reflection Questions (type in a google doc, print, and then tape to p. 77 in notebook after it is graded) 1) Use this picture and your observations to EXPLAIN why your hair behaves this way after you rub it with a balloon. Draw a diagram and explain in words. 2) WHY did you need to rub the rod with fabric before you did the activity? 3) WHAT does “charging the rod” mean? WHAT do you think is happening at an atomic level? 4) If an object with a negative charge attracts another object, WHAT kind of charge did that other object have? WHY? 5) If we put two charged glass rods near each other, WHAT do you think would happen? WHY do you think that would happen? 6) What are the 3 different ways objects can gain a charge? EXPLAIN what each one is and give an EXAMPLE. 7) Watch the video below. EXPLAIN what is happening to the cat. Make sure to use the following words: balloon, cat, electrons, charge, static electricity
Closure: Make sure your document has a name similar to "Static Electricity Lab Reflection Questions" in google drive (GRADED ASSIGNMENT) Put this file into your science folder in google drive. Print it out and turn it in for a grade.
Homework:
Finish the reflection questions
Week 19, Day 3
PTT: 1) Turn in your printed reflection questions to be graded. 2) Record the date and the title on p. 78 Diagramming Static Electricity
3) Record essential question (goal question) on p. 78 Goal Question: How does electrically charged material attract or repel other objects?
Task 1: Balloons and Static Electricity Simulation
1) Go to the following website: http://phet.colorado.edu/en/simulation/balloons 2) Click "Run in HTML5" 3) Draw a "Before Friction" images before you click on the balloon. 4) Try moving the balloon around and see what happens. You can try using two balloons as well. Click reset if you want to try something different. 5) Draw 2 AFTER pictures (one to show how the balloon and sweater interact, and one to show how the balloon and wall interact). 6) Write a descriptive label for each picture (use the words: positive, negative, electron, proton, attracts, repels)
Task 2: Explaining Static Electricity
1) Title p. 79 "Explaining Static Electricity" and record the date. (IGNORE that it says p. 77) 2) Write a definition for the following terms we have been using at the top of the page: Electricity, Static Electricity, Charging by Conduction, Charging by Induction, Charging by Friction, Discharging, Law of Conservation of Charge
3) Get a copy of the writing frame from the basket on the front counter. 4) Complete the writing frame. Show it to your teacher when you are done. 5) Tape the writing frame to p. 79
Closure: Copy the reflection questions into a word document or a google document. You will complete these for homework, due on Monday. Studies show that when we think about stuff and then sleep, we remember it better.
Homework: Complete the following reflection questions in a doc that you put in your Google shared science folder. Use the resources and videos linked below as necessary:
1) Why can electrons be transferred between objects, but not protons?
2) When does a piece of matter have a charge? [hint: look back at the after picture on page 78]
3) What happens if two objects have the same charge?
4) What happens if two objects have different charge?
5) What happens when you rub one object with another object? Describe using a specific example, and make sure the word "electron" comes up in your answer.
6) What is the difference charging by friction, charging by induction, and charging by conduction?
7) What is discharging? Give an example.
Week 19, Day 1
Introduction to ElectricityTable of Contents
1) Turn to the 2nd section of your notebook - title the first page "2nd semester"
2) Get a new table of contents out of the basket.
3) Flip to the next page (a left hand page) and tape the table of contents to that page in your science notebook - fill it out as on the board.
4) Number this page 72
5) Number the following pages until you get to page 91.
6) On p. 73, write the title "Electricity." We will fill out this page with little images as we go through the unit.
Task 1: The Forms of Energy
1) Turn to p. 74 and record the date.
2) Write the goal at the top of the page.
Goal Q - What are the different forms of energy?
3) Write a big title on the page (feel free to take up several lines)
Title - Forms of Energy
4) Draw 8 boxes - one for each form of energy
5) Record a title in each box from the following list: Heat, Electrical, Sound, Light, Solar, Kinetic (motion), Chemical, Potential (stored)
6) Draw a picture/symbol in each box that represents that form of energy. Use color in your drawings.
7) Consider this: Energy can be transferred (moved) and changed (transformed) from type to type. For example, a flashlight battery has chemical energy which is transformed into electrical energy in the flashlight circuits and then light energy that radiates from the bulb.
Task 2: Transferring Charge Demo
1) Record this at the top of page 75:
Goal Q - What is static electricity, and how can we experience it?
2) Title the page: Transferring Charge Demonstration
3) While we have the demonstration, draw a diagram that represents what you see. Good diagrams are accurate, big, colorful, and detailed. Be sure to label the "Van der Graaf Generator," the "Leyden Jar," and the "Electroscope."
4) Once the demo is over, discuss with your partners what you saw; then we will discuss with the class.
5) Write a paragraph that explain WHAT happened and WHY you think that happened. Be sure to use the types of charging that were involved.
Task 3: Set up page for tomorrow's lab (7 minutes)
1) Record the title (Lab: Static Electricity) and date (W19, D2) at the top of page 76
2) Record these chemistry review notes at the top of the page:
Notes: Protons have a positive (+) charge
Electrons have a negative (-) charge.
Atoms are usually neutral (no charge).
Different charges attract (pull towards each other).
Same or "like" charges repel (push away from each other).
Charged objects attract objects with no charge.
3) Record the sentence starter for the hypothesis. Do NOT complete the sentence yet.
Hypothesis: If an object has no charge, then it can become charged by...
4) Make a chart for your observations. Leave several blank lines so that you can describe what you see at each station.
Observations:
Closure (5 minutes):
On a sticky note, write a sentence that explains what you think static electricity is, and leave that on the door on your way out of class.
I think static electricity is...
Week 19, Day 2
PTT:
1) Turn to page 76 in your science notebook
2) Make sure your page is set up (see task 3 from yesterday if it is not)
3) Complete the hypothesis sentence with electricity in mind: If an object has no charge, then it can become charged by...
Task 1: Lab - Exploring Static Electricity
Here are the directions for the lab. Be sure to record observations at each station - Example: when we did [blah], then [blah blah blah] happened.
Procedure:
Station 1: Balloons and Hair (CHARGING BY FRICTION)
1) Rub the inflated balloon vigorously back and forth across one group member’s hair.
2) Record what happened to the group member’s hair.
3) Touch the balloon to one of the side walls and let go of it (try a few surfaces if you have time).
4) Record what happened when you placed the balloon to the wall.
Station 2: Charged Rod and Water
1) Turn on the faucet so that the water runs out in a small, steady stream.
2) Rub the rod with the piece of fabric to “charge” it. (CHARGING BY FRICTION)
3) Bring the rubbed end of the rod near the water (do NOT touch it) and observe how the water behaves.
4) Record what happened in your chart.
Station 3: Styrofoam and Charged Rod
1) Place some tiny scraps of styrofoam on the lab desk.
2) Rub the rod with the piece of fabric to charge it. (CHARGING BY FRICTION)
3) Slowly bring the rubbed end of the rod near the styrofoam.
4) Record what happened in your chart.
5) Try rubbing the rod longer. Does this make a difference in how much the styrofoam moves? Record this in your chart.
Station 4: Balloons
1) Rub the balloon against a group member’s hair to charge it. (CHARGING BY FRICTION)
2) Move the charged balloon towards the other balloon.
3) See what happens to the other balloon. Record what happens in your chart.
4) Now charge both balloons.
5) Put them next to each other to see what happens.
6) Record what happens in your chart.
Station 5: Van der Graaf Generator and Leyden Jar
1) Plug in the Van der Graaf Generator.
2) Hold the Leyden Jar near the Van der Graaf Generator.
3) Observe what happens, and record this in your chart.
4) Talk to your partners: is this CHARGING BY INDUCTION or CHARGING BY CONDUCTION? Why? Record this in your chart.
5) When done, make sure to discharge the Leyden Jar and unplug the Van der Graaf Generator.
Station 6: Electroscope
1) Take a look at the electroscope. What does it look like?
2) Take a balloon and charge it by friction.
3) Hold the balloon near the electroscope and observe what happens.
4) Touch the balloon to the electroscope and observe what happens.
5) Record your observations in your chart.
6) When you are done, touch the metal ball on the electroscope to discharge it by transferring the charge to you (CHARGING BY CONDUCTION).
Task 2: Lab Reflection Questions (type in a google doc, print, and then tape to p. 77 in notebook after it is graded)
1) Use this picture and your observations to EXPLAIN why your hair behaves this way after you rub it with a balloon. Draw a diagram and explain in words.
2) WHY did you need to rub the rod with fabric before you did the activity?
3) WHAT does “charging the rod” mean? WHAT do you think is happening at an atomic level?
4) If an object with a negative charge attracts another object, WHAT kind of charge did that other object have? WHY?
5) If we put two charged glass rods near each other, WHAT do you think would happen? WHY do you think that would happen?
6) What are the 3 different ways objects can gain a charge? EXPLAIN what each one is and give an EXAMPLE.
7) Watch the video below. EXPLAIN what is happening to the cat. Make sure to use the following words: balloon, cat, electrons, charge, static electricity
Helpful info:
Interesting link about water and charged balloons:
http://www.thenakedscientists.com/HTML/content/kitchenscience/exp/bending-water-static-attraction/
Closure:
Make sure your document has a name similar to "Static Electricity Lab Reflection Questions" in google drive (GRADED ASSIGNMENT)
Put this file into your science folder in google drive.
Print it out and turn it in for a grade.
Homework:
Finish the reflection questions
Week 19, Day 3
PTT:
1) Turn in your printed reflection questions to be graded.
2) Record the date and the title on p. 78
Diagramming Static Electricity
3) Record essential question (goal question) on p. 78
Goal Question: How does electrically charged material attract or repel other objects?
Task 1: Balloons and Static Electricity Simulation
1) Go to the following website:
http://phet.colorado.edu/en/simulation/balloons
2) Click "Run in HTML5"
3) Draw a "Before Friction" images before you click on the balloon.
4) Try moving the balloon around and see what happens. You can try using two balloons as well. Click reset if you want to try something different.
5) Draw 2 AFTER pictures (one to show how the balloon and sweater interact, and one to show how the balloon and wall interact).
6) Write a descriptive label for each picture (use the words: positive, negative, electron, proton, attracts, repels)
Task 2: Explaining Static Electricity
1) Title p. 79 "Explaining Static Electricity" and record the date. (IGNORE that it says p. 77)
2) Write a definition for the following terms we have been using at the top of the page: Electricity, Static Electricity, Charging by Conduction, Charging by Induction, Charging by Friction, Discharging, Law of Conservation of Charge
3) Get a copy of the writing frame from the basket on the front counter.
4) Complete the writing frame. Show it to your teacher when you are done.
5) Tape the writing frame to p. 79
Closure:
Copy the reflection questions into a word document or a google document. You will complete these for homework, due on Monday. Studies show that when we think about stuff and then sleep, we remember it better.
Homework:
Complete the following reflection questions in a doc that you put in your Google shared science folder. Use the resources and videos linked below as necessary:
1) Why can electrons be transferred between objects, but not protons?
2) When does a piece of matter have a charge? [hint: look back at the after picture on page 78]
3) What happens if two objects have the same charge?
4) What happens if two objects have different charge?
5) What happens when you rub one object with another object? Describe using a specific example, and make sure the word "electron" comes up in your answer.
6) What is the difference charging by friction, charging by induction, and charging by conduction?
7) What is discharging? Give an example.
Use the following resources as needed:
Electrostatics Activity
Static Electricity Reading
this website