Lampara De Lava
Enviado por aspcasdf • 30 de Mayo de 2013 • 402 Palabras (2 Páginas) • 875 Visitas
Lava lamp lab Name;
Mrs. George Period:
Objective: Students will be able to explain what is happening in their “lava lamp” using their knowledge of chemistry and density.
Materials:
Clear beverage bottle
150 ml of water
150 ml of oil
several drops of food coloring
beaker for measuring
funnel
Procedure:
1. measure 150 ml of tap water.
2. Using the funnel, add the tap water to the bottle
3. Measure 150 ml of oil
4. Using the funnel, add the oil to the bottle (tip the bottle slightly and aim the funnel toward the side of the bottle)
5. Record your observations
6. Add several drops of food coloring to the bottle
7. Record your observations
8. Break up an Alka Seltzer tablet in pieces that will fit through the opening of the bottle.
9. Drop in the Alka Seltzer (do not put the cap on the bottle).
10. Record your observations
Step observations
Oil is added to water
Food coloring added.
Alka Seltzer tablet added
Draw conclusions about your observations. Please be sure to include the chemical change that occurs, and be sure to draw conclusions about the density of molecules in this lab. Be thorough!
Type your final assignment and include a typed data table with all of your observations. The data table should look like the one on this document except that your observations will be typed in the blank space. USE THE RUBRIC BELOW!
Category Excellent 4 pts Good 2.5-3.5 pts Needs work 0 – 2 pts
Data Table Data table is typed with thorough observations recorded and no spelling or grammar errors Data table is neatly typed with adequate observations recorded and less than 2 spelling or grammar errors Data table is typed with minimal observations
Conclusion format Conclusion is neatly typed in proper paragraph form with no spelling or grammatical errors Conclusion is neatly typed in paragraph form with 2 or fewer errors Conclusion is typed in paragraph form with more than
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