Science Questions
Explore questions in the Science category that you can ask Spark.E!
The number of stars in a galaxy is typically
The number of different amino acids used to make proteins is...
High concentrations of energy can result in "pair-creation", i.e. production of particle/anti-particle pairs. TRUE or FALSE?
All stars are suns. True or False?
The radioactive half-life of carbon - 14 is approximately 5000 years. If a sample of tissue from a pre-historic man buried in a glacier has only one-quarter the amount of carbon 14 that living tissues normally have, the man died approximately
in 1952, Stanley Miller tried to simulate the action of lightning on the early atmosphere and ocean by passing sparks through a mixture of plausible atmospheric gases and water, and he...
Which of the following particles is "fundamental" i.e. not made of anything smaller?
In the Doppler Shift light from objects moving toward the observer appears red shifted, and light from objects moving away from the observer appears blue shifted: True or False?
The inner planets of our Solar System , in order of distance from the Sun are:
All mammal embryos go through a stage in which they have gill slits like fish embryos, indicating that they are descended from fish-like ancestors. TRUE or FALSE?
The inflationary scenario predicts that our Universe is just one of trillions of other universes, each of which had its own Big Bang and subsequent evolution. These universes are thought to be...
The outer planets of our Solar System in order of distance from the Sun are:
Lipid molecules in water from bilayers that spontaneously from spherical cell-like structures with...
In modern living organisms, enzymes are made of....
In modern living organisms, nucleic acids act as [Check all that apply]
The sequence of DNA uses an "alphabet" of just four bases, A, T, G, C. TRUE or FALSE?
Amino acids are the monomer units of...
We know that the Moon formed in a giant collision because the Moon rocks brought home by the Apollo astronauts are...
All prokaryotes are single-celled. TRUE or FALSE?
The decay of 14K (potassium -40) into 40Ar (argon-40) is used to data two samples of rock. Sample A has twice as much 40K as 40Ar, but sample B has three times as much 40K as Ar. Which sample is older?