1 / 23

CHEMISTRY SEPTEMBER 11, 2014

CHEMISTRY SEPTEMBER 11, 2014. DENSITY. SCIENCE STARTER. Work silently and individually on your Science Starter Do not use your note You have 3 minutes. OBJECTIVES. SWBAT Identify differences between mass and weight Define volume Apply density formula. AGENDA. Science Starter

tybalt
Download Presentation

CHEMISTRY SEPTEMBER 11, 2014

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. CHEMISTRYSEPTEMBER 11, 2014 DENSITY

  2. SCIENCE STARTER • Work silently and individually on your Science Starter • Do not use your note • You have 3 minutes

  3. OBJECTIVES • SWBAT • Identify differences between mass and weight • Define volume • Apply density formula

  4. AGENDA • Science Starter • Quiz review • Density activity

  5. QUIZ REVIEW • Definition of chemistry • Difference between applied and pure chemistry • 5 major divisions of chemistry • Convert using dimensional analysis

  6. QUIZ REVIEW (CONT) • Steps to the Scientific Method • Differences between hypothesis, theory and law • Definition of measurement • Accuracy and Precision

  7. DENSITY SODA CANS

  8. OBSERVATION • Using the handout in the Observation block – identify what do you see. Provide details.

  9. PROBLEM • List any problems or question you may have in the PROBLEM block.

  10. HYPOTHESIS • In the Hypothesis block – state your hypothesis

  11. EXPERIMENT • In the Experiment block – list the steps for this demonstration

  12. DEMONSTRATION • Do the demonstration

  13. DATA COLLECTION/ANALYSIS • Record in details what you saw happened. • Then analyze the data that was collected

  14. CONCLUSION • What was the result? • Did you conclusion support the hypothesis?

  15. THE SCIENCE BEHIND IT

  16. MASS • the amount of matter an object has • Base unit is kilogram • Use a scale

  17. WEIGHT • Measure of the gravitational force exerted on an object • Its value can change depending upon location

  18. VOLUME • Definition – the amount of space an object occupies

  19. VOLUME – LIQUID MEASUREMENT • Liquid - put into a liquid measuring device (such as a graduated cylinder) and the amount seen is the measured value

  20. VOLUME – SOLID MEASUREMENT • Regular shaped solid – can be determined by using the volume formula for the shape • Rectangular box: V=lwh • Cube: V=s3 • Cylinder: V=πr2h • Sphere: V=4/3 πr3

  21. VOLUME SOLID MEASUREMENT (2) • Irregular shaped solid • Water displacement • Take the volume measurement of water in a container • Add the irregular shaped solid and take the new measurement • Take the difference to get the volume of the solid

  22. DENSITY • Definition – the ratio of the mass of a substance to the volume of the substance • D = mass/volume = m/V

  23. DENSITY QUESTIONS • Complete the Density Question Worksheet.

More Related