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Mrs. Alvis Class Science Inquiry Showcase 2011-2012.

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Presentation on theme: "Mrs. Alvis Class Science Inquiry Showcase 2011-2012."— Presentation transcript:

1 Mrs. Alvis Class Science Inquiry Showcase 2011-2012

2 Which liquid will evaporate the most over 7 days: water, Cherry 7 Up, dark corn syrup, hand sanitizer, vinegar, or vegetable oil?

3 Hypothesis Most of us think water will evaporate the most because it is natural, doesnt have any chemicals, and the other liquids are stickier than water. Some of us think Cherry 7 Up will evaporate the most because it has bubbles that can make the Cherry 7 Up float away faster. One student predicts that hand sanitizer will evaporate the most because it evaporates quickly on your hands.

4 Materials 100 ml Water 100 ml Cherry 7 Up 100 ml Dark Corn Syrup 100 ml Hand sanitizer 100 ml Vinegar 100 ml Vegetable Oil Window Masking Tape Marker 6 Graduated Cylinders

5 Procedures 1.Pour 100 ml of water into one graduated cylinder. Label the graduated cylinder with masking tape. 2.Pour 100 ml of Cherry 7 Up into one graduated cylinder. Label the graduated cylinder with masking tape. 3.Pour 100 ml of hand sanitizer into one graduated cylinder. Label the graduated cylinder with masking tape. 4.Pour 100 ml of dark corn syrup into one graduated cylinder. Label the graduated cylinder with masking tape. 5.Pour 100 ml of vinegar into one graduated cylinder. Label the graduated cylinder with masking tape. 6.Pour 100 ml of vegetable oil into one graduated cylinder. Label the graduated cylinder with masking tape.

6 7. Record in notebook or on a data sheet how much liquid is in each graduated cylinder. 8.Place graduated cylinders in the window. 9. The next day, measure and record the amount of liquid in each cylinder. 10. Continue to measure and record the amount of liquid in the cylinders for 7 days. Procedures

7 Day 1 All liquids are at 100 ml.

8 WaterCherry 7 Up Hand Sanitizer Dark Corn Syrup Vegetable Oil Vinegar 99 ml93 ml94 ml100 ml 97 ml Day 3

9 Day 7 WaterCherry 7 UpHand Sanitizer Dark Corn Syrup Vegetable OilVinegar 93 ml88 ml 86 ml 100 ml 92 ml

10 Day 7 WaterCherry 7 UpHand Sanitizer Dark Corn Syrup Vegetable OilVinegar 93 ml88 ml 86 ml 100 ml 92 ml

11 Data Day 1Day 2Day 3Day 4Day 7 Water100 ml 99 ml 93 ml Cherry 7 Up 100 ml94 ml93 ml91 ml88 ml Hand Sanitizer 100 ml 94 ml91 ml86 ml Dark Corn Syrup 100 ml Vegetabl e Oil 100 ml Vinegar100 ml98 ml97 ml 92 ml

12 Results Over the 7 days, dark corn syrup and vegetable oil did not evaporate at all. The hand sanitizer evaporated the most. Cherry 7 Up evaporated the second fastest. Vinegar evaporated the third fastest. Water evaporated the fourth fastest. Cherry 7 Up and vinegar are the only liquids that evaporated on Day 2.

13 Conclusion Claim – Hand sanitizer evaporated the most of all the liquids. Evidence – On day 7, hand sanitizer had 86 ml left, the least amount of all the liquids. Reasoning – We think hand sanitizer evaporated the most because of the chemicals that are in it. Also, we know that when we use hand sanitizer, it dries faster than water on our hands. We think that maybe the more it is exposed to air, the quicker it will evaporate.

14 Thoughts from the Class I was surprised about the hand sanitizer because I thought the water would evaporate faster. – Lily My hypothesis was really great – I was almost right! – Viktor I was surprised because at first 7 Up was evaporating the fastest, then the hand sanitizer evaporated the fastest. – Reese and Katey I was surprised that vegetable oil didnt evaporate. – Sophia I think everyone expected the dark corn syrup to not move because it is so sticky. – Josie My hypothesis was right! It was hand sanitizer that evaporated the most. - Evan It was fun to watch the experiment, especially since most people thought water was going to evaporate the fastest. – Abby I was surprised that water didnt evaporate that fast. – Christian


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