Statement A: All molecules of one substance are exactly the same, and they are different from molecules of any other substance.
Statement B: The properties of the molecules of a substance do not change.
💚 Which model do you think is the most accurate (correct) - color changing, growing, or attraction model?
Explain why the answer you chose for Question 1. Use Statement A and Statement B to write your answer.
Statement A: All molecules of one substance are exactly the same, and they are different from molecules of any other substance.
Statement B: The properties of the molecules of a substance do not change.
Sentence starter:
The ______________ model is the most accurate (correct) because _____________
Draw your chromatography model to show what happened to the molecules before and after adding water to the food coloring.
💚 Claim (Answer to the question): Why are there different colors on the chromatography paper?
Word Bank: attraction, molecules, dye
Sentence starter: There are different colors because ______________
Pasta Model: What happened in the pasta model?
What properties caused the pasta mixture to separate? Where did the rice pasta go? Where did the tube pasta go? Where did the bowtie pasta go?
Break It Down - Saltwater Mixture: What happened in the saltwater mixture?
What property caused water molecules to separate from the salt atoms? Why did the water molecules move through the filter?
The water molecules separated from the salt atoms because of their ______________. The water molecules moved through the filter because ______________.
Food Coloring Chromatography: What happened in the food coloring chromatography?
💚 What property caused black food coloring to separate into different colors? Which dye went to the bottom, middle, and top of the paper?
The black food coloring mixture separated by ___________________. The ______________ dye was on the bottom, the ______________ dye was in the middle, and the ______________ dye was at the top.
Reasoning (Explanation): Explain why are there different colors on the chromatography paper?
Explain what happened to the molecules before and after the black food coloring and chromatography paper was put in water.
Criteria For Success
Identify whether the black food coloring is a substance or mixture
Identify the property the black food coloring separated by when the chromatography was put in water
Describe the position of the red dye on the chromatography paper AND explain why
Describe the position of the blue dye on the chromatography paper AND explain why
Explain what happened to the molecules before and after the black food coloring and chromatography paper was put in water.
The black food coloring is a __________.
When the chromatography paper was put in water, the food coloring __________.
The red dye was at the bottom of the chromatography paper because __________.
The blue dye was at the top of the chromatography paper because __________.
💚 Which model shows what the molecules BEFORE the experiment (BEFORE water was added?
Explain why the model you chose shows the molecules BEFORE the experiment.
Model ___ shows molecules BEFORE the experiment because _____
💚 Which model shows what the molecules AFTER the experiment (AFTER water was added?
Explain why the model you chose shows the molecules AFTER the experiment.
Model ___ shows molecules AFTER the experiment because _____
💚 Which model is INCORRECT?
Explain why the model you chose shows the molecules are INCORRECT.
Model ___ is INCORRECT because _____
