Mysterious Substances
What is acidic on a pH scale?
A base has a pH less than 7, so a base has a pH between 0 and 6
What does chromatography help separate?
Different substances or colors mixed together.
How many blood types are there and what are the types?
There are four types; O, AB, A and B.
What are the four "letters" of DNA?
A, T, C, and G.
What was the crime committed and where did it take place?
A thief stole jewels from a museum.
What is basic on a pH scale?
A base has a pH greater than 7, so a base has a pH between 8 and 14.
What liquid was used to separate the colors in our experiment?
Water.
Which blood type is the universal recipient?
AB
Which "letters of DNA" pair together?
A pairs with T, and C pairs with G.
What was the tool the thief used to break in?
A hammer.
What is an indicator?
An indicator is a substance that changes in a noticeable way, such as changing color, to show information about another substance.
What is chromatography?
A science technique used to separate the different colors or chemicals in a mixture.
Which blood type is the universal indicator?
O
How is everyone's DNA different?
Everyone inherits a unique combination of DNA from their parents (except identical twins).
What was the first piece of evidence found (give a short description of the evidence)?
It was a note from the theif that said "I'm the burglar" in blue writing.
What happened when we mixed baking soda and vinegar?
The mixture started fizzing, bubbling and overflowed.
For example, what would happen if you placed a coffee filter with a dot from a green marker in water?
The dot would spread upwards and green and yellow would show.
Can A and B combine to create AB?
No, the A and B blood would reject each other.
How can DNA help solve a crime?
Investigators compare DNA found at a crime scene with DNA from suspects.
What was the third piece of evidence found?
The thief's shoe print.
What color would an acid turn in universal indicator?
Red, red-orange or orange.
How can chromatography help solve a crime?
It lets scientists compare inks from a note to a suspect's pen.
What is blood made of?
Red blood cells, White blood cells, Platelets, and Plasma.
What does DNA stand for?
Deoxyribonucleic acid
WHO WAS THE BURGLAR?
JULISSA!!!!