## Transition Metals Bingo Card – Free Template

During our chemistry unit, playing games is a fun way to become familiar with the elements and the vocabulary associated with the periodic table.

Different ways to play:

• Say the element symbol
• Say the atomic number
• Say the name of the element
• Describe the properties of the element:
• “I am the only metal that is a liquid at room temperature’
• “I am used in light bulb filaments and have 74 protons”
• “My atomic mass is 52”
• “I have 29 electrons”

Different ways to win:

• Any 5 spaces in a row that are vertical, horizontal, or diagonal
• good for quick games
• An “X”, “L”, or “T” formation
• takes longer to win
• “L” or “T” can be in any orientation such as sideways or upside down
• After a few rounds, have students switch cards with their seat mate, if either one wins, they both win
• Collect all bingo cards, shuffle and hand out, if someone wins, the person with the card and the person who made card are both winners
• Small prizes such as stickers or other knick-knacks are fun to give out

• This lesson is modified from the original lesson posted at ScienceSpot.net
• Detailed lesson information, along with a rubric, can be found on her website
• Top 10 Elements Draft Pick ElementDraftPick
• Student will research the ‘stats’ for their favorite elements
• Students will draw numbers to determine the order in which they will pick their element
• Once an element has been chosen, no one else in the class can choose that element and they will cross it off their list
• Students will spend one class period researching their element and creating an advertisement using Google Draw.
• If not done during class time, it will be completed for homework over a few days.
• Display the element advertisements so students can see their work :)
• To use the template, simply make a copy of the template to make changes, please do not request editing rights

## Rainbow Test Tubes Activity

Problem: How many colors can be created by starting with red, yellow, and blue solutions?

Materials per group of 3-4 students:

• Student Handout RainbowTestTubesPublic (pdf)
• Spreadsheet to collect data (excel – public)
• 9-10 test tubes with test tube rack
• Erlenmeyer flasks filled with red, yellow, and blue solutions of food coloring and water
• 5 drops of food coloring per 200 mL (25 per 1L)
• 3 x 25 mL Graduated Cylinders
• 3 x 10 mL Graduated Cylinders
• pipette
• beaker filled with clean water
• large beaker for used water
• this activity took 2x 50 minute class periods

This lab is an updated version of the classic Rainbow Lab (link) that has been around since the 80’s (Measuring Liquid Volume with a Graduated Cylinder 1988). I used this for many years with my 5th graders, and previously with my 6th graders in the early 2000’s. Now that I am teaching 6th grade again, I wanted to make it more open ended and challenging. The purpose of the original version of the lab was twofold: First – could they follow directions carefully to make a rainbow? Second – how precisely can they measure liquid volume?

For the new version of this lab, I created new objectives and assessed the students based on their problem solving, collaboration, and measuring skills.

Objectives:

• Students will be able to precisely measure liquids with a graduated cylinder
• Students will be able to create their own lab procedures using the given parameters to guide them
• Students will create new mixtures and solutions
• Students will be able to record accurate data
• Students will collaborate and problem solve to achieve a common goal
• Students will test, evaluate, and select the best proportions to create the colors orange, green, and purple
• each group made 3-4 different combinations for each color and had to, as a group, determine which combinations of primary colors created the best secondary colors
• Students will follow proper lab procedures to avoid color contamination
• Students will record and analyze data from the whole grade and compare their findings to the averages from each group, what patterns or trends did they notice in the data?
• Students will create their own ‘designer’ color and share it with the class
• this was fun way to wrap up the activity, we had a ‘fashion’ show with each group coming up to the front of the room to showcase their newly created and named colors
• if time allowed, at the end we made a rainbow with each student holding their test tube and standing next to a person who had a color similar to their own, from Red to Purple

## DNA – Paper Protein Chains Activity

Purpose:

• Students will convert their name into a DNA sequence and create a protein chain.

Materials:

• Student Handout (DNAPaperProteinChainsActivity)
• pre-cut 2 inch wide strips of construction paper  (12×18) in the following colors – red*, pink, yellow, orange*, green, lt. blue, dk.blue, and black*
• (*) be sure to have more of these colors since they are vowels
• I used a paper cutter and was able to make a lot of strips very quickly ahead of time
• markers
• staplers
• clothes pins and string to hang up in classroom

Procedures:

1. This activity should be used after DNA and protein synthesis has been introduced. This activity will help reinforce the concept of how the sequence of DNA codons create specific amino acids, and in turn, the amino acids are joined together to create specific proteins. (link)
2. Each student will write the letters from their first and last name onto the student handout.
3. Using the chart, they will find the amino acid associated with the first letter of their first name.
4. For example, if the first letter is “L”, it will code for Leucine. They will select one of the codons for Leucine and write it on their chart.
5. Write the color of the paper link they will need for “L”, in this case, it is Red.
6. Repeat for every letter in their name.
7. Once their handout is completed, they will select the colored links, one for each letter of their name.
8. The colored links will be placed in the same order as the letters in their name.
9. On each link, write one of the codons for that letter. For example, “L” would be “CTT” on a Red link.
10. Loop and staple the first letter of their name.
11. Weave through the second letter and staple the loop closed.
12. Continue until all the letters have been linked together.
13. Hang up the protein chain, be sure to have the first letter of their name at the top.
14. Look for patterns – what color was used the most? Which group of amino acids was it? Which group of amino acids was used the least? Who had the longest name? Etc.

## Candle Observation Lab

Materials – per 2 students

• votive candle
• small beaker
• large beaker
• ruler
• student handout (CandleObservations)
• matches & beaker with water for spent matches
• I light the candles for the students in this age group (6th)

Procedures

1. Discuss how candles work and the fire triangle (link)
2. Discuss combustion and the chemical reactions that takes place when a candle burns
3. Explain the lab procedures and remind students of safety protocols
4. Students will record qualitative and quantitative observations of an unlit candle (5 minutes), burning candle (10 minutes), and a covered burning candle until it goes out and the wax hardens (5 minutes)
• all students will place the larger beaker over the candle at the same time and watch as the candle goes out
5. Share observations and discuss

I like to use this lab as part of my physical and chemical changes unit, it is such a classic and the kids make some great observations and ask lots of good questions.

## Amoeba Sisters – Science Videos

I started using this series of videos for my 7th graders to review some of the concepts of Meiosis & DNA. The feedback from my students was that it was helpful so I wanted to share them on here as well. Please visit their Youtube Channel for more videos.

## Sugar Density Column

Materials

• Student Handout (pdf)
• Food Coloring – Red, Blue, Yellow, & Green
• Erlenmeyer flask filled with warm tap water
• 4 Stirrers/Sticks
• 4 Pipettes
• 1 Spoon
• Granulated Sugar
• 3 Test Tubes
• Test Tube Rack
• 4 Clear Cups

This sugar density activity is one I have never tried before, I actually ‘borrowed’ the idea from my son’s HS Chemistry Teacher. He came home and told me they made different colored layers using only sugar, food coloring, and water. I immediately jumped on the computer and thought about how to use this in my 6th grade classes, we are in the middle of our density unit and it would be a perfect opportunity to try it out.

One of my goals for this year is re-examine my lessons and see which activities I can make more open-ended when appropriate. For this activity, most of the resources I found told the students exactly how much sugar to put in each layer and what order to place the colors into the test tube or some other type of container. I didn’t want my students to follow step by step procedures, but wanted it to be more of an exploration type of activity. I had no idea how this would turn out but gave it shot anyway.

I gave them the problem, the parameters, the tools to complete the activity, and sent them on their way. It was great to see them figure out how to solve the problem, talk out strategies, and to see them go through the trial and error process. Each group came up with a different way to solve the problem and some groups struggled more than others. I met with each group to facilitate, ask questions, and had them explain to me what they were doing and why. Overall, it was a successful lesson, they enjoyed the activity, and it really solidified their understanding of density.

I am also incorporating more open ended writing in science and I enjoyed reading their reflections about the activity.

## Super Easy to Make Cartesian Divers

This was the easiest, and most inexpensive way to make cartesian divers I have ever tried, and each student got to take theirs home after class. Did I mention how much fun it was?!

Materials

• semi-transparent to transparent bendy straws – 1 per student
• colored paper clips – 4-6 per student
• scissors – 1 per 2-4 students
• 2L bottle with cap – 1 per 2 students
• beaker of water – 1 per 2-4 students
• tray to contain spills -1 per 2 students
• paper towels
• optional: eye dropper with blue colored water

Part 1 – Demonstration:

As part of our density unit, we talk about the concept of buoyancy – why do objects float or sink? Using a 2L bottle of water, a glass medicine dropper, and some blue food coloring, we made guesses and observations about the cartesian diver.

The medicine dropper is filled with blue water, checked for buoyancy, and then added to a 2L bottle. Students gather to make observations. What do you think will happen when I squeeze the bottle? What will the blue water do? Why did it sink? Why did it float? What is happening to the air in the diver? What is the water doing? Did the mass of the diver change? The density? Students share their ideas and we come to a conclusion as to why the diver floats and sinks.

Part 2 – Build and Explore:

After the demonstrations, students get to build their own divers and explore on their own. Some tips to keep in mind:

1. Be careful bending the straw, any cracks will make the the straw useless.
2. After bending the straw, cut off the excess length of straw so that both side are equal in length. (You can save the rest of the straw for future activities)
3. Attach one paper clip as shown in the diagram below. Additional paper clips can be easily added or removed by sliding them on or off the main paper clip. (Like keys on a keychain)
4. Use a rescue hook for any divers that do not float back to the top.
5. Remind students to place the cap back on the bottle TIGHTLY – or water will shoot out of the bottle when they squeeze it.
6. Lunch or serving trays work nicely to contain spills.

## Density – Identification Challenge

Materials:

• Flinn Scientfic Block set (link) & Resources/Handout (pdf)
• Ruler
• Calculator
• Triple Beam Balance
• Worksheet to collect data (pdf)

For this activity, I used the set of density blocks from Flinn Scientific. Each group of students had 6 blocks made of the same material. Their challenge was to identify the material using their measurement skills to calculate the mass, volume, and density of each block. This activity also reinforced the concept that the density of an object is constant.

## Triple Beam Balance – Bottles of Stuff!

Materials

• Single Serving Size (1L or less) bottles filled with various items
• students brought in materials of their choice over the course of a week
• Triple Beam Balance (TBB)
• Mass Set
• Student Handout (Triple Beam Balance Bottles pdf)

Procedures – Part 1

1. Provide each lab group with an assortment of bottles
2. Students will arrange the bottles from lightest to heaviest by making observations
3. They will record the order of the bottles and their contents with #1 as the lightest and #10 the heaviest on their handout
• my groups used 9 bottles, but there is room on the handout for 10
4. Using the set of masses, they will estimate the mass of each bottle by holding a bottle in one hand and a mass in the other hand, recording their estimations on the handout

Procedures – Part 2

1. Students will transfer their estimation to the back page
2. Using the TBB they will record the actual masses of the bottles
3. Then they will rank the bottles from lightest (#1) to heaviest (#10) and compare their estimation to the actual masses. How close were the estimations to the actual masses? Did they place the bottles in the correct order?

Results

 Bottle # Mass (g) Bottle # Mass (g) Bottle # Mass (g) 1 126.9 14 281 27 192.3 2 72.9 15 336.5 28 330.9 3 29.6 16 223 29 465 4 438 17 70 30 195 5 202.1 18 36.43 31 59.1 6 166 19 185 32 168.8 7 63.1 20 88 33 33 8 301.5 21 140.1 34 100 9 224 22 49.1 35 402.5 10 610+ 23 73.3 36 187.1 11 67.1 24 54.9 37 318.4 12 251.8 25 27.5 38 13 410.1 26 406 39

You can also use these bottles as part of your density unit, see my blog entry for more information.