This is a table of all known chemical elements organized by atomic number
What is the Periodic Table? Elements are organized so that they are grouped by similar chemical properites
The primary source of energy on Earth
What is the sun? Radiation from the sun is converted into biomass by photosynthsizers, like plants
The chemical symbol for ______ is "C"
What is carbon?
This is the hardest naturally occurring substance... A: emerald B: tourmaline C: diamond D: corrundum
What is C: Diamond. Diamond is also one of the most valuable natural substances. Diamonds are crystals formed almost entirely of carbon. Because of its hardness, the diamond is the most enduring of all gemstones. They are among the most costly jewels in the world, partly because they are rare, Only four important diamond fields have been found - in Africa, South America, India, and the Soviet Union.
Which animal has the most vertebrae in its neck? A: Giraffe, B: Mouse, C: Human
They are all the same, they just have different sizes.
This planet has the highest density in our solar system
What is Earth?
When baking soda and vinegar make a chemical reaction, it releases a gas composed on one carbon atom and two oxygen atoms called _______
What is carbon dioxide (CO2)
This animal has the highest blood pressure... A: Giraffe, B: Blue Whale, C: Elephant, D: Flea
What is A: Giraffe. Because of its extremely long neck, the giraffe must rely on its oversized heart (two feet long and twenty-five pounds!) to pump blood all the way to its head. As a result, the giraffe has the highest blood pressure of any animal: 280/180 mmHg (millimeters of mercury) at heart level when prone -- more than twice the blood pressure of an average human. Not surprisingly, because of their high blood pressure, giraffes are prone to heart attacks.
The planets make up this percentage of the mass in our solar system... A: 0.0135 %, B: 0.135 %, C: 1.35 %, D: 13.5 %
What is B: 0.135 % of the mass in our solar system. The Sun dominates, accounting for 99.86 % of the entire solar system's mass.
_____ is a substance that will behave like a solid or liquid under different pressures.
What is a non-newtonian fluid. These substances might act like a solid under high pressure or a liquid under low pressure!
The first Earth Day was celebrated in this year... A: 1950 B: 1960 C: 1970 D: 1980
What is C: 1970. The first Earth Day was celebrated on April 22, 1970, and has been celebrated each year following on April 22nd. The original purpose of Earth Day was to inspire people to think and act more consciously about our impact on the environment. This was in response to very poor air and water quality, even a river catching fire!