Biology
Physics
Chemistry
Scientists
Random
100
What contains the DNA of a cell? (The brain of the cell)
Nucleus
100
How do you calculate frequency, when the velocity and wavelength is known.
f = v ÷ λ
100
What does the symbol "Pb" in the periodic table stand for?
Lead
100
"E = mc^2" is a formula created by which famous scientist?
Albert Einstein
100
What planet is closest to the sun?
Mercury
200
What cell organelle provides energy for a cell to move, divide, produce, etc.?
Mitochondria
200
What is the doppler effect?
The Doppler effect is the apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves.
200
What are the three things atoms are made of?
Protons (+), newtons (n) and electrons (-)
200
Who was the first to observe and record bacteria?
Anton van Leeuwenhoek
200
The movie, "The Theory of Everything" is based on which famous theoretical physicist?
Stephen Hawking
300
The net movement of water particles is called ______.
Osmosis
300
What is the result called when two interfering waves create a zero amplitude?
When there are more than two waves interfering the situation is a little more complicated; the net result, though, is that they all combine in some way to produce zero amplitude.
300
Fill in the blank: Non-metal atoms are ______ charged ions.
negatively
300
Which scientists contributed the most to The Cell Theory?
Matthias Schleiden, Theodor Schwann, Rudolf Virchow
300
how many bones are there in the human body?
206, and 270 at birth
400
Name all of the cell organelles of a plant cell.
Cell wall, cell membrane, vacuole, nucleus, mitochondria, nucleolus, Rough ER, Smooth ER, cytoplasm, chloroplasts, lysosome, ribosome.
400
What is a diffuse reflection?
Rough surfaces scatter the light and produce what is called a diffuse reflection.
400
When balancing equations, what is the left hand side called?
Reactants.
400
How did Robert Hooke discover cells?
He looked at a piece of cork under the microscope.
400
What does a forensic anthropologist do?
a person who inspects bones, they examen human skeletal remains for law enforcement agencies to determine the identity of unidentified bones.
500
What are transmembrane proteins?
Transmembrane proteins are integral proteins that cross the membrane and can act as pathways for ions and molecules.
500
Name all the types of rays in the electromagnetic spectrum.
Radiowaves, microwaves, infrared rays, visible rays, ultraviolent rays, x-rays, gamma rays.
500
What is the definition for an Ion?
Ions are electrically charged particles formed when atoms lose or gain electrons.
500
What was Rudolf Virchow's theory?
He theorised that cells are created from the division of cells meaning that all living cells come only from other living cells. The only certain cells or groups get sick rather than the whole organism.
500
who is the best science teacher?
Mrs.Nicholl
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