1 / 11

Penny Lab

Penny Lab. Simply Science Approach. Part 1. Playing and Observing. What did you observe?. Brainstorm ideas in the following categories. Drops of water the penny held. What did I observe? What could I change? What would I change?. Part 2. Performing and Recording.

cala
Download Presentation

Penny Lab

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Penny Lab Simply Science Approach

  2. Part 1 Playing and Observing

  3. What did you observe? • Brainstorm ideas in the following categories.

  4. Drops of water the penny held What did I observe? What could I change? What would I change?

  5. Part 2 Performing and Recording

  6. Planning your experiment • Pick one thing about the Penny Lab that you will change. • Your independent variable • You will count the number of drops you can get onto a penny without the water spilling off. • Your dependent variable • List the things about the Penny Lab that you could change but will keep constant. • Your control variables

  7. Planning your experiment • Write down a question for your experiment • E.g. “How will soap affect the number of drops?”?” • Write down a hypothesis for your experiment • E.g. “If soapy water is added to the penny, then the number of drops that can fit on a penny will decrease.” 3. Write down a prediction for your experiment • E.g. “If soapy water is added to the penny, then the number of drops that can fit on a penny will decrease I think this will happen because...”

  8. Procedure • Write a procedure to test your hypothesis. • Step by step process for the experiment (past tense, passive voice) • Use the following format: • Use complete sentences • Should be written in numbered steps • steps that are common sense should be omitted (for example: “Goggles were used”; “The materials were gathered”). • Always use the past tense ( “A pipette was used…”) • Describe what you changed and measured • Describe how you kept other factors constant (controls) • Provide enough detail so that someone could repeat your experiment just using your procedure • Safety precautions and proper disposal of chemicals should be included in your procedure. E.g., • 10-cm long sheets of each paper towel brand were used. • 3-mL samples of 2% milk were placed on a wooden surface. • Once you show your procedure to your teacher, you may begin your experiment.

  9. Procedure-Example 1. A micro-well was filled half full with distilled water. 2. A small amount of sodium chloride was added to the water. 3. The mixture was stirred with a glass stirring rod. 4. The conductivity of the mixture was tested using the conductivity tester. 5. Steps 1-4 were repeated for all samples.

  10. Conducting your experiment • Plan an experiment and collect data according to the following table.

  11. Analysis and Conclusions • Analyze the data and draw conclusions. Write a paragraph below (using complete sentences) that explains how your independent variable affects the the number of drops that can fit on a penny , using your data to help you answer the question. Suggest a reason for your observations(Why did it happen). Support or reject your hypothesis.

More Related