Science 8: Unit 3 Assessment Physical and Chemical Properties

Posljednje ažuriranje 4 months ago

Background Information

A Hand Crank Flashlight is purchased online to show how energy is transferred in the system. To better understand how the hand crank system works the flashlight is taken apart (figure below). To reverse engineer this flashlight and build this mechanism the materials (A-F) below must be identified and purchased.

Investigation Plan - Materials Testing

In addition to closely observing the six materials below (A-F) the following tests were performed on the materials: lightbulb test, paperclip test, magnet test and water test.

What is the purpose of the investigation?

Science 8: Unit 3 Assessment Physical and Chemical Properties

Posljednje ažuriranje 4 months ago

Background Information

Investigation Plan - Materials Testing

In addition to closely observing the six materials below (A-F) the following tests were performed on the materials: lightbulb test, paperclip test, magnet test and water test.

What is the purpose of the investigation?

What properties can be observed in the Video?

Why is the evidence from the video reliable?

Question 5

00:02

Question 6

00:35

Question 7

01:29

Now that you have collected data from the pictures and video, you have decided that more information is needed. What two additional tests would you like to perform in order to gather more information about the physical and chemical properties of the materials?

Why would these two tests answered in question 8 specifically be helpful in the identification of these materials?

After completing the two additional tests and gathering data, what next steps would you take, as a scientist, to identify each of the materials in the flashlight?

Science 8: Unit 3 Assessment Physical and Chemical Properties

What is the purpose of the investigation?

Science 8: Unit 3 Assessment Physical and Chemical Properties

What is the purpose of the investigation?

What properties can be observed in the Video?

Why is the evidence from the video reliable?

Now that you have collected data from the pictures and video, you have decided that more information is needed. What two additional tests would you like to perform in order to gather more information about the physical and chemical properties of the materials?

Why would these two tests answered in question 8 specifically be helpful in the identification of these materials?

After completing the two additional tests and gathering data, what next steps would you take, as a scientist, to identify each of the materials in the flashlight?

What properties can be observed in the Video?

Why is the evidence from the video reliable?

What materials are reflective?

Select all materials that have electrical conductivity

Select all Materials that respond to magnetic forces

Select all materials are soluble

Now that you have collected data from the pictures and video, you have decided that more information is needed. What two additional tests would you like to perform in order to gather more information about the physical and chemical properties of the materials?

Why would these two tests answered in question 8 specifically be helpful in the identification of these materials?

After completing the two additional tests and gathering data, what next steps would you take, as a scientist, to identify each of the materials in the flashlight?

What materials are reflective?

Select all materials that have electrical conductivity

Select all Materials that respond to magnetic forces

Select all materials are soluble