PTT:
1) Turn to p. 34 in your science notebook
2) Title the page - Chemical Reactions and Chemical Equations
3) Record the goal - Goal: I can write a chemical equation for a chemical reaction.
4) Record the date
Task 1:
1) Copy down these notes about chemical reactions and chemical equations: - Chemical Reactions: these are what cause chemical changes --> when we combine substances and they react to form different/new substances - Reactants: the substances that combine to cause a chemical reaction/change (what you have before the reaction) - Products: the substances formed during a chemical reaction/change (what you have at the end of the reaction) - We represent chemical reactions with chemical equations
2) Discuss as a class what we've learned
Task 2:
Record the "things to know" below our previous notes. You will want about 4 different colors of pen or colored pencil (or 4 different colors of highlighter). I used blue, red, purple, and black.
Closure:
Use google and the homework video to find and record the chemical equations for the following reactions. Write the word equations AND the formula equations. Label the reactants and the products.
1) making water
2) methane combustion
3) making salt
4) Equation of your own choice
Homework:
Watch this video at home for an introduction to the idea of balancing chemical equations
Finish p. 35 - chemical equation examples (the closure)
Use google and the homework video to find and record the chemical equations for the following reactions. Write the word equations AND the formula equations. Label the reactants and the products.
1) making water
2) methane combustion
3) making salt
4) Equation of your own choice
Week 8, Day 2
PTT:
1) Turn to p. 35 in your science notebook
2) Check your 4 equations versus theses ones - use them to determine whether you set up your equations correctly
Task 1:
1) Turn to page 36 in your science notebook
2) Title the page: Law of Conservation of Matter
3) Record the goal - Goal: I can write a balanced chemical equation and explain how the Law of Conservation of Matter is important to this.
4) Record the date
5) Copy down these notes: Law of Conservation of Matter/Mass: Matter can NOT be created or destroyed, only transferred Basically, there is always the same atoms in the same number with the same mass before and after a chemical reaction or any change
Homework:
Keep practicing balancing equations - play the balancing games again or google to find more
Week 8, Day 3
PTT:
Get out the homework sheet.
Read over the answers
We will discuss this as a class
Task 1:
1) Turn to p. 37
2) Title it Chemical Equation Practice
3) Write the date
4) Copy the chart below and fill it out by recording the element names in the "types of atoms" column and then recording how many atoms of each element are present
Task 2:
1) Complete the practice sheet - this is on the counter, see attached document if absent:
2) Tape it in as a flip page on p. 37 when complete
Task 3:
Complete the 4 practice problems on p. 38 - create a chart to count the atoms of each element in the reactants and the products. Then note whether it follows the Law of Conservation of Matter or not
Task 4:
1) Title p. 39 - Rules: How to Balance Chemical Equations
2) Record the date
3) Record a list of rules for how to balance chemical equations on p. 39
Week 8, Day 4
PTT:
1) Get our your homework sheet (Lemonade/Burning Paper) - put it in the black inbox tray for your class
2) Complete the 4 practice problems on p. 38 (Counting Atoms in Chemical Equations) - create a chart to count the atoms of each element in the reactants and the products. Then note whether it follows the Law of Conservation of Matter or not.
3) If needed, use the paper called "How to Balance Equations that Don't Follow the LCM"
You will tape this paper onto p. 39 in your science notebook
NOTE: Remember, you only need to be able to get through step 5 on the unit test next week
Task 1:
1) Turn to p. 40 in your science notebook
2) Title the page "Lab: Conservation of Matter"
3) Record the date
4) Copy down the problem question Problem Question: Is the mass of the reactants greater than the mass of the products when 10g of baking soda is mixed with 50 mL of vinegar?
5) Write a hypothesis that answers the problem question. Be sure to use the "if...then...because" format. Hypothesis: If 10g of baking soda is combined with 50 mL of vinegar, then the mass of the products will be insert appropriate word here the mass of the reactants because...
6) Read the background information for the lab: Juanito works at a factory that makes special self-inflating beach balls. The beach balls are sealed tight so that no air can get in and no air can get out. In order to get them to blow up, a packet of sodium bicarbonate (baking soda) and a small packet of acetic acid (vinegar) are placed inside the ball. When the two packets are emptied inside the ball a chemical reaction happens and a gas is produced. When mixed in correct proportions, enough gas is produced to inflate the ball. The problem that Juanito has, however, is with shipping costs. He can ship as large of a container as he wants because he is charged by the kilogram. Juanito needs to know if it is cheaper to send the balls already inflated or not. Your task today is to find the answer to Juanito’s problem.
7) Work in your groups to come up with a procedure that uses the following materials to answer the problem question and come up with a solution for Juanito. Record this in your science notebook below your hypothesis. Leave room for a data chart at the bottom of the page (see below).
8) Record a data chart at the bottom of the page
Task 2: 1) Check your procedure with Ms. Davis 2) Complete the lab following your written procedure EXACTLY 3) When you have calculated your change in mass, check with Ms. Davis - you might need to try again if your results were not accurate.
Task 3/Closure: 1) Open the following document and make a COPY: Lab Document 2) Save that copy to your science folder in Google Drive 3) Rename the file so that it doesn't say "Copy of" at the beginning 4) Type in your name, the date, and the class period 5) Type in your procedure and data
Homework: Make sure your procedure and data are all entered into the lab report document for class on Monday
Week 8, Day 1
Table of Contents
PTT:
1) Turn to p. 34 in your science notebook
2) Title the page - Chemical Reactions and Chemical Equations
3) Record the goal - Goal: I can write a chemical equation for a chemical reaction.
4) Record the date
Task 1:
1) Copy down these notes about chemical reactions and chemical equations:
- Chemical Reactions: these are what cause chemical changes --> when we combine substances and they react to form different/new substances
- Reactants: the substances that combine to cause a chemical reaction/change (what you have before the reaction)
- Products: the substances formed during a chemical reaction/change (what you have at the end of the reaction)
- We represent chemical reactions with chemical equations
2) Discuss as a class what we've learned
Task 2:
Record the "things to know" below our previous notes. You will want about 4 different colors of pen or colored pencil (or 4 different colors of highlighter). I used blue, red, purple, and black.
Closure:
Use google and the homework video to find and record the chemical equations for the following reactions. Write the word equations AND the formula equations. Label the reactants and the products.
1) making water
2) methane combustion
3) making salt
4) Equation of your own choice
Homework:
Watch this video at home for an introduction to the idea of balancing chemical equations
Finish p. 35 - chemical equation examples (the closure)
Use google and the homework video to find and record the chemical equations for the following reactions. Write the word equations AND the formula equations. Label the reactants and the products.
1) making water
2) methane combustion
3) making salt
4) Equation of your own choice
Week 8, Day 2
PTT:
1) Turn to p. 35 in your science notebook
2) Check your 4 equations versus theses ones - use them to determine whether you set up your equations correctly
Task 1:
1) Turn to page 36 in your science notebook
2) Title the page: Law of Conservation of Matter
3) Record the goal - Goal: I can write a balanced chemical equation and explain how the Law of Conservation of Matter is important to this.
4) Record the date
5) Copy down these notes:
Law of Conservation of Matter/Mass: Matter can NOT be created or destroyed, only transferred
Basically, there is always the same atoms in the same number with the same mass before and after a chemical reaction or any change
Task 2:
1) We will watch this BrainPop video to review chemical equations:
http://www.brainpop.com/science/matterandchemistry/chemicalequations/
2) Now let's practice! Follow along with the examples as Ms. Davis draws them
Task 3:
1) Watch this video where a fellow middle schooler explains how to balance chemical equations
If you feel like you need some more review, try out this video:
Read here if you want a step-by-step explanation: http://misterguch.brinkster.net/eqnbalance.html
2) Try out this online game to practice balancing chemical equations: ChemBalancer
3) Here is another one for more practice: It's Elemental - Balancing Act
Closure:
Complete the probe
Homework:
Keep practicing balancing equations - play the balancing games again or google to find more
Week 8, Day 3
PTT:
Get out the homework sheet.
Read over the answers
We will discuss this as a class
Task 1:
1) Turn to p. 37
2) Title it Chemical Equation Practice
3) Write the date
4) Copy the chart below and fill it out by recording the element names in the "types of atoms" column and then recording how many atoms of each element are present
Task 2:
1) Complete the practice sheet - this is on the counter, see attached document if absent:
2) Tape it in as a flip page on p. 37 when complete
Task 3:
Complete the 4 practice problems on p. 38 - create a chart to count the atoms of each element in the reactants and the products. Then note whether it follows the Law of Conservation of Matter or not
Task 4:
1) Title p. 39 - Rules: How to Balance Chemical Equations
2) Record the date
3) Record a list of rules for how to balance chemical equations on p. 39
Week 8, Day 4
PTT:
1) Get our your homework sheet (Lemonade/Burning Paper) - put it in the black inbox tray for your class
2) Complete the 4 practice problems on p. 38 (Counting Atoms in Chemical Equations) - create a chart to count the atoms of each element in the reactants and the products. Then note whether it follows the Law of Conservation of Matter or not.
3) If needed, use the paper called "How to Balance Equations that Don't Follow the LCM"
You will tape this paper onto p. 39 in your science notebook
NOTE: Remember, you only need to be able to get through step 5 on the unit test next week
Task 1:
1) Turn to p. 40 in your science notebook
2) Title the page "Lab: Conservation of Matter"
3) Record the date
4) Copy down the problem question
Problem Question: Is the mass of the reactants greater than the mass of the products when 10g of baking soda is mixed with 50 mL of vinegar?
5) Write a hypothesis that answers the problem question. Be sure to use the "if...then...because" format.
Hypothesis: If 10g of baking soda is combined with 50 mL of vinegar, then the mass of the products will be insert appropriate word here the mass of the reactants because...
6) Read the background information for the lab:
Juanito works at a factory that makes special self-inflating beach balls. The beach balls are sealed tight so that no air can get in and no air can get out. In order to get them to blow up, a packet of sodium bicarbonate (baking soda) and a small packet of acetic acid (vinegar) are placed inside the ball. When the two packets are emptied inside the ball a chemical reaction happens and a gas is produced. When mixed in correct proportions, enough gas is produced to inflate the ball. The problem that Juanito has, however, is with shipping costs. He can ship as large of a container as he wants because he is charged by the kilogram. Juanito needs to know if it is cheaper to send the balls already inflated or not. Your task today is to find the answer to Juanito’s problem.
7) Work in your groups to come up with a procedure that uses the following materials to answer the problem question and come up with a solution for Juanito. Record this in your science notebook below your hypothesis. Leave room for a data chart at the bottom of the page (see below).
8) Record a data chart at the bottom of the page
Task 2:
1) Check your procedure with Ms. Davis
2) Complete the lab following your written procedure EXACTLY
3) When you have calculated your change in mass, check with Ms. Davis - you might need to try again if your results were not accurate.
Task 3/Closure:
1) Open the following document and make a COPY: Lab Document
2) Save that copy to your science folder in Google Drive
3) Rename the file so that it doesn't say "Copy of" at the beginning
4) Type in your name, the date, and the class period
5) Type in your procedure and data
Homework:
Make sure your procedure and data are all entered into the lab report document for class on Monday