Atoms
what is a proton
This subatomic particle is positively charged and found in the nucleus of an atom.
What are ALL the layers of earth
Crust, Mantle, Outer Core, Inner Core
The Big Bang theory suggests that the universe began from a state of extremely high temperature and density approximately this many billion years ago.
14 Billion years ago
What are the 2 things you should where in the lab?
Lab coat and lab glasses
what are the 2 main elements?
Hydrogen and helium.
what is a isotope.
Atoms of the same element that have different numbers of neutrons
what is the earths core primarily made out of
Iron and Nickle
Who is Edwin Hubble?
This scientist discovered that galaxies are moving away from each other, leading to the conclusion that the universe is expanding.
What is the proper way to smell a unknown substance
Waft it
This element, with the symbol "U," is a radioactive metal used as fuel in nuclear reactors.
Uranium
What is the Bohr model?
This model of the atom, developed by Niels Bohr, describes electrons orbiting the nucleus in discrete energy levels.
What is the asthenosphere?
This zone within the mantle is semi-fluid and allows for the movement of tectonic plates.
4.5 Billion?
How old is earth
What is the first thing you should do if a chemical spill occurs.
Tell a teacher
This element, symbolized as "Fe," is one of the most abundant elements in Earth's crust and is the primary component of steel.
Iron
What is alpha decay?
This type of decay occurs when an unstable nucleus emits an alpha particle, reducing its atomic number by two.
What is oceanic crust?
The Earth's crust is divided into two types: oceanic and continental. This type of crust is denser and thinner
Who came up with the Big Bang theory?
Georges Lemaître
Why should long hair and loose clothing be put up In the lab?
To prevent it from causing harm, being dipped in chemicals or catching fire.
This highly reactive element, symbolized as "Na," is commonly found in table salt when combined with chlorine.
Sodium
What is a nuclear reaction?
This type of reaction occurs when the nucleus of an atom undergoes a transformation, either by splitting (fission) or combining (fusion), releasing a vast amount of energy.
What is pressure?
The outer core of the Earth is in a liquid state because the temperature is high enough to melt iron and nickel, but this factor prevents the inner core from being liquid.
what is the universe timeline? name 5 events in oldest to youngest.
Big Bang, Atoms, Stars, Planets, People,
what should you do if a chemical spills in your eyes?
Immediately run to the eye wash station.
This element, symbolized as "Pb," has been used since ancient times for plumbing and in lead-based paints, but it is now known to be toxic.
What is lead.