Science
Competition Time
Are you ready?
Prepared by Miss Salma Sherif
Choose The Right Answer
10 Questions
Traffic Light is a Chemical reaction,
What is the type of this reaction?
Neutralization Reaction
Combustion Reaction
Redox Reversible Reaction
Synthesis Reaction
What are the 3 colors of the Traffic
Light reaction?
Blue, yellow, Red
Amber, Green, Red
Amber, Blue, Red
Blue, Yellow, Green
Elephant Toothpaste is a chemical
reaction, What is the type of this
reaction?
Decomposition Reaction
Synthesis Reaction
Neutralisation Reaction
Combustion Reaction
In the Elephant Toothpaste
reaction, the test tube feels hotter
to the touch, Why?
Because it is an Endothermic Reaction
Because it is an Exothermic Reaction
Because it is a Combustion Reaction
Because it explodes!
In the Elephant Toothpaste
reaction, Why do we add the yeast
and/or KMnO4?
It is a reactant
It acts as a Catalyst
As an indicator
Because it explodes!
Whoa!
Half way through
You are doing GREAT!
Blue Bottle is a Chemical reaction, what
factor/s that might affect the time
needed for the blue color to fade?
Temperature
Concentration
Shaking the bottle
All of the above
In the Blue Bottle investigation, with
changing the concentration of reactants,
what must be the controlled variable?
Temperature
Concentration
None of the above
All of the above
Oobleck is a so-called nonNewtonian fluid, Because?
Oobleck can be both solid and liquid at the
same temperature.
means that the fluid behave as the great
physicist Isaac Newton described.
the viscosity of a fluid, i.e. its inertia doesn’t
depend on the temperature.
In Oobleck; Does the temperature
change affects the non-Newtonian
fluid ?
YES
No
What is unifying all living beings?
DNA
Cells
Who discovered the DNA?
Friedrich Miescher
Dmitri Mendeleev
Charles Darwin
Awesome Job