The Scientific Method
It's the galaxy that includes our solar system.
What is the Milky Way?
A solution is acidic when it has a pH less than this.
What is 7?
Splish splash, you can take a bath with this playful yellow inductee that floats.
What is a rubber ducky?
The variable you watch and measure throughout an experiment.
What is the dependent variable?
These are caused by the moon's gravitational pull on our oceans.
What are tides?
This phenomenon occurs when the moon casts a shadow on part of the earth.
What is a solar eclipse?
Water boiling is an example of this kind of change.
What is a phase or physical change?
The National Toy Hall of Fame honored a box made of this; inside a big one, "a child is transported to a world of (their) own".
What is cardboard?
A proposed explanation for an observation or phenomenon.
What is a hypothesis?
Deforestation can cause this effect on the Earth's surface.
What is erosion or global warming?
This fundamental force guides the movements of all objects in space.
What is gravity?
The National Toy Hall of fame calls this, created in 1974, the "most popular puzzle in history".
What is a Rubik's cube?
These rocks often start as sediments carried in rivers and deposited in lakes and oceans that eventually become cemented.
What is sedimentary?
A natural particle from space that survives impact with the Earth's surface.
What is a meteorite?
When using the periodic table, it's the number that indicates the number of protons in the nucleus of in an element.
What is the atomic number?
Hasbro said this action figure that debuted in 1964 was "America's movable fighting man".
What is G.I. Joe?
This process involves evaluation of experiments by experts before publication in a scientific journal.
What is peer review?
Unlike weather, which can change daily, this is the average pattern of atmospheric conditions such as temperature, rainfall, and humidity.
What is climate?
These have a gravitational pull so strong that light cannot escape, and are formed when a star collapses.
What is a black hole?
(2 answers) One is a measure of the force of gravity, the other is a measure of matter.
What is weight and mass?
Joshua Lionel Cowen entered the HoF for his work on these playthings, which he branded with his own middle name.
What are toy trains?