Bridge Building (2/10/2014)

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This week we investigated the basic principles of physics through bridge-building.Through experimentation of which shapes are the most structurally strong, students learned that many factors are taken into account in engineering and building. The project provided a practical application of physics to a real-world context.

Taste Buds (2/3/2014)

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This week, we investigated taste buds with a fun experiment. Everyone tasted lemon juice (sour), chocolate powder (bitter), honey (sweet), and salt water (salty) once and recorded at which part of their tongue they tasted each taste most strongly. We drew a tongue map based on our experiment and compared it with the literature.

Animals in Winter, Pepper & Water (1/27/2014)

Animals in Winter, Pepper & Water (1/27/2014)

By using pepper and water, we explored the interaction between soap and water. Then, with we investigated how Arctic animals can stay warm even on cold days by using plastic wrap and shortening!

Density Rainbows

In this lesson, we learned about density – the relative “heaviness” of the same amounts of liquid. We used different colors of water with different amounts of salt in them. Half of the students had water with different amounts of salt in them, and half of the students used plain water. The water with equal amounts of salt mixed together, and the water with different concentrations of salt stayed separate, because of the different densities!

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Freddy the Fish (Pollution)

When people litter or dump things into our waterways, what happens to the creatures that live there? We explored this question with our friend Freddy the Fish (made out of sponge). Our mentors told a story about what happens to water: people drop their litter, business dump their chemicals, wastewater plants dump waste. A simulation involving all of these pollutants made Freddy’s water too gross to touch, let alone live in! We brainstormed ways that we can keep our water cleaner.

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Volcanoes!

This week, we did a classic science experiment – making a volcano! We skipped the process of building a lifelike volcano and went straight for the explosion using baking soda and lemon juice. We learned from this experiment about how acids and bases react with each other.

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Strawberry DNA

When we asked what students knew about DNA, we got a lot of different answers! Some students said “it’s in your blood”, and some even knew about the double helix structure! No one knew, however, that we’d be able to see it with the naked eye! All it took was a few mashed strawberries, coffee filters, and a bit of rubbing alcohol (to break the cells open), and we could pick up the DNA (and other genetic material) in a long, slimy, strand!

Lots of DNA!

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