(A)
Which planet is known as the Red Planet?
Mars
What happens to resistance if the length of a wire increases?
Increase
What gas do plants absorb from the air?
Carbon dioxide
What part of the cell controls its activities?
Nucleus
Why does a black object heat faster than a white object in sunlight?
Black absorbs more radiation.
What layer of the Earth do we live on?
The crust
What type of circuit has more than one path for current?
Parallel circuit
What is a substance made of two or more elements chemically combined?
Compound
What blood cells fight infection?
White blood cells
What is the general pH of a neutral solution at 25°C?
7
What do we call molten rock inside the Earth?
Magma
What is the unit of electric power?
Watt or Kilowatt
What type of reaction absorbs heat?
Endothermic reaction
You get free 300 Points !!!
Congratulations!
Which organ filters blood and removes urea?
Kidney
What causes day and night?
Earth's rotation
Who proposed the three laws of motion?
Sir Isaac Newton
What is the chemical symbol for gold?
Au
Who is known as the “Father of Genetics”?
Gregor Mendel
If Earth rotated twice as fast, what would happen to the length of a day?
It would be about 12 hours.
What natural satellite orbits the Earth?
The Moon
Why is lightning seen before thunder is heard?
Light travels faster than sound
What element fuels the Sun through nuclear fusion?
Hydrogen
What molecule provides immediate energy for cells?
ATP
Which blood type is known as the universal donor?
O negative