G6 Week 07 – S2

Last week in science!

Monday, March 11th

Today in science: In anticipation of some of the upcoming experiments, Dr. M asked students to add a new page to the “Reference” section found at the end of their Lab Notebooks. This page was titled, “Using a Bunsen burner,” and contained both a labelled drawing and safety tips to follow before and during Bunsen burner use. Near the end of the lesson, Dr. M briefly showed students an actual Bunsen burner in action. Students will use the burners–and learn more about how to use them safely–during an activity in tomorrow’s lesson.

Homework: There is no science homework tonight.

Tuesday, March 12th

Today in science: Students were asked to consider the Bunsen burner introduced in yesterday’s lesson in a new, different way. They were asked to make a drawing (see Notes portal) that shows how molecules of methane (CH4) and oxygen (O2) gas combine in the presence of a spark (energy) to create entirely new substances: carbon dioxide gas (CO2) and water (H2O) vapor plus heat and light. We called this type of reaction a “combustion” reaction. Students were then asked to draw a second type of combustion reaction that involved trees, or wood, as the ‘fuel’ molecule. This second drawing is also available in the Notes portal.

Homework: There is no science homework tonight.

Wednesday, March 13th

Today in science: After preparing their lab notebooks for today’s “Metal Ball & Ring Investigation,” students were asked to record a series of What-I-Know statements, including a drawing of the arrangement of the atoms within the metal we call brass. All of the work we did during this investigation–in other words, all of the statements we recorded, all of the drawings we did, and all of the observations we made (and recorded)–can be viewed at this LINK.

Homework: In a box we created within their lab notebooks, students were asked to draw what they think happens to the Cu and Zn atoms after spending 60 seconds in a hot flame. Just below the box, students were asked to put their drawing into words, so that Dr. M can understand exactly what students think is happening to/with the atoms included in the drawing.

Thursday, March 14th

Today in science: By examining students’ lab notebooks, Dr. M was able to see that students had at least two different ideas about what happened to the copper and zinc (brass) atoms when they were heated and cooled in Wednesday’s demonstration. A further class discussion revealed that students in this class had no less than 5 (logical!) ways of explaining what happened to the brass ball and ring after a) heated, and b) cooled.

To see how scientists explain the behavior of the atoms found within the metal ball and ring, Dr. M handed out a new Chemistry booklet and asked students to read Chapter 1 (pages 56-60) in search of the scientific explanation. He also explained to students the weekend homework assignment, which is summarized below:

Students have been asked to write a 1-page explanation of a phenomenon they witnessed in Wednesday’s lesson. This explanation should take up only the front side of a single piece of lined paper. To help students with this assignment, students need to use Chapter 1 of their new Chemistry Reading Packet (pages 56-60) to create two different explanations:

1. Explain why the brass (metal) ball could NOT fit through the brass (metal) ring after Dr. Merritt HEATED the ball in the flame of the Bunsen burner.

2. Explain why the brass (metal) ball COULD fit through the brass (metal) ring after Dr. Merritt COOLED the ball with water from the sink/faucet.

Be sure that your explanations of these two observations is done with both sentences AND drawings. Also, Be sure that your explanation of this observation focuses on movement and spacing of both the zinc and copper ATOMS.

Homework: The homework assignment students have been asked to finished by the start of next Monday’s science lesson is described above.

Friday, March 8th

Today in science: Unfortunately, A period science does not meet on Fridays. 😦

Homework: —

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