By: Mick Sumner

Buzz Lightyear, a beloved character from Disney was found poisoned by one of twenty suspects. He and Woody were starting a cooking show and invited other cartoons to join. The cartoons had to bring four main items. Mick’s class ran tests to find the crime scene of each item. They ran tests on all of the four things which are:

1. A liquid for a drink2. A white powder for a desert3. Any of three types of hotdog4. A wrap to put the hotdog inThe class ran many tests on these and finally found

the answer.

Mick had a hypothesis as to who did it. His hypothesis was that it was Luke Skywalker. He thought this because the things that Luke brought which were, salt water, aluminum, sodium polyacrylate, and a ft free hot-dog, looked like the things he found at the crime scene.

Hand lenses, triple beam balance, spoons, stirring rods, matches, paper cups, iodine, hot plates, well-plate, beakers, eyedroppers, sodium bicarbonate, conductivity meters, graduated cylinder, hydrochloric acid, goggles, forceps.

Drinks Density Color Odor Conductivity

Reactivity

Flammability

Water 1 clear none low Not Reactive

Not flammable

Alcohol Floats in water

clear Strong Smell

Low or None

Not Reactive

Flammable

Salt Water

Sinks in water

clear none Very High none Not flammable

Vinegar Sinks slightly in water

Hazy clear

Strong odor

Very High Extreme Bubblin

g

Not flammable

Grape Sinks slightly in water

Purple Sweet grape odor

Very High Fizzes Not flammable

Lemonade

Sinks in Water

Yellow Sweet smell

High Bubbles Not Flammable

Crime Scene Liquid

1 clear none low Not reactive

Not flammable

After comparing all of the evidence Mick figured out that the crime scene drink had to be water. He knew this because all the tests matched up and he also knew the density of water was one.

Powders Solubility

Conductivity

Melting Reactivity

Flammability

Sucrose Yes High Yes none no

Baking Soda

No Very High No Bubbles a lot

Turned yellow

Sodium Polyacryla

te

No Mixes High No clumps no

Sodium Chloride

Yes Very High No none mo

Ascorbic Acid

Yes Very High Yes Paste like mo

Crime Scene

Powder

Yes High Yes none no

After comparing all of the data Mick gained he came to the conclusion that the substance had to be sucrose because he saw that all of the tests matched the crime scene powder.

Wraps Color Density Malleable

Conductivity

Reactivity

Plastic Purple .8 g/ml Yes None or low

none

Aluminum Silver 1.2 g/ml Yes Very High Slicks off

Zinc Silver 2 g/ml Yes Very High Bubbles

Copper Bronze 3.5 g/ml Yes Very High Cleaned

Iron Silver 1.25 g/ml Yes Very High None

Sulfur Silver 1.3 g/ml No, it breaks

Vey High None

Crime Scene Liquid

Silver 2 g/ml Yes Very High Bubbles

When Mick compared all of the data he found that the mystery substance matched the data of zinc. The big give away for him was the density.

Hotdog Pre-squeezed mass

Post-squeezed mass

Conductivity

Density Reactivity

Pork 9 g 8 g high 1.001 g/ml

Turned dark

purple

Light 10 g 7 g Very high 1.0001 g/ml

No noticeable change

98% fat-free

11 g 10 g Very high 1.05 g/ml Turned brown

Crime scene hotdog

11 g 10 g high 1.001 g/ml

Turned dark

purple

When Mick compared results he saw that the crime scene hotdog data matched the plain pork hotdog. He saw that they had all of the same results.

Density-1. got the objects mass Malleable- 1. bent metal

2. got the objects volume 3. divided mass by volumeConductivity-1. placed the conductivity meter on

and read the lights.Luster-1. saw how shiny it wasReactivity-1. used something to get a reactionSolubility-1. poured water to see if it dissolved.

http://www.sciencedaily.com/releases/2008/06/080602103331.htm

In the end Mick and his class saw that the crime scene objects all matched the objects that Sponge-Bob Square-Pants. He and his classmates know this because he has pork, zinc, sucrose, and water.