Science!!! Flashcards
Krypton has atomic number 36. How many electrons does it have?
36
How many bones does an adult human body have?
206
Give the term for the amount of time it takes for a radioactive substance to decay to half its original mass
Half-Life
What kind of substance has a half-life?
Radioactive Substance
Give the common name for elements in group 18 of the periodic table.
Noble Gases
Identify the theoretical particles now believed to be among the smallest building blocks of matter. A proton or a neutron is made of three of these.
Quarks
Identify the SI unit of force. It is equivalent to one kilogram times one meter per second squared.
Newton
In particle physics, identify the tiny particle whose different “flavors” are called up, down, top, bottom, strange, and charm.
Quarks
Identify the spectrum of electromagnetic radiation with wavelengths between 400 and 700 nano-meters.
Visible Light
Name the theory developed in the early twentieth century that suggested that all matter, like light, could be described as both particles and waves.
Quantum mechanics
What chemical makes up, on average, 60% of the human body?
Water
Name the male part of a flower composed of the anther and the filament.
Stamen
Where in a flower are the stamens located?
Petals
What are the two parts of a flower that make up the stamen?
Anther, Filament
What three flower parts compose the pistil?
stigma, style, ovary
Name the female part of a flower composed of the stigma, style, and ovary?
Pistil
Where is a flower is the pistil located?
Center of the flower
Which chemical elements make up carbohydrates?
carbon, hydrogen, oxygen
Give the name for the relationship between organisms in which both organisms receive benefit but retain their individuality.
Mutualism
Explain the primary claim of the theory of spontaneous generation.
Living organisms can arise from nonliving matter, such as decaying matter.
Name the structures within a cell often called the powerhouse of the cell, because they generate most of the cell’s ATP.
Mitochondria
Identify the chemical produced in cells that is involved in most cellular energy transfer.
ATP (adenosine triphosphate)
Give the common abbreviation for adenosine triphosphate, a chemical common in cellular energy transfer
ATP
Explain the difference between the three major categories of sedimentary rocks.
Clastic rocks are made of pieces of other rocks fused together; chemical rocks are formed from supersaturated solutions that evaporate away, leaving the extra minerals; organic rocks form from the petrification of organic matter.
