This is a push or a pull that can make an object move, stop moving, or change directions.
Force
Programs that computers run on, that occasionally need updated, are called this.
software
Gravity and this force are what stops a ball from bouncing on and on forever.
friction
In algebra, a number that is unknown is replaced by a letter, in which the letter is called this. In science, something that changes or can be changed.
variable
You should wash your hands with soap and warm water for at LEAST this many seconds.
20
This type of disease cannot be spread from person to person through touch or airborne particles.
Non-communicable diseases
Tech Support usually tells their clients to do this, turning the computer off and on again, when it is acting up.
reboot
Isaac Newton's first Law of this, sometimes called the law of inertia, states that objects at rest must stay at rest, and objects that are moving must continue moving unless acted upon by an unbalanced external force.
Motion
This is the name for the answer to a division equation.
This planet is known as the "third rock from the sun."
Earth
This is another word (a compound word) for child or young, usually used in relation to the parent.
offspring
This is the name for the parts inside of a computer or a computing system.
hardware
The Wright brothers invented this in 1903, and was described as "heavier than air."
Aircraft
This is made up of vertical and horizontal lines and points that can be identified by their x-coordinate (the distance from the y-axis) and their y-coordinate (the distance from the x-axis).
coordinate grid
"OS", as in iOS, stands for this.
"operating system"
This separates the first four and last four planets in our solar system
"WWW" stands for this.
world wide web
gravity
This is the name for the first number, or number before the minus symbol, in a subtraction equation.
Minuend
This is the number of bones that are in an adult human body.
206
The act of learning from nature, or mimicking, to solve human problems is this. Velcro and bullet trains were examples of it.
Biomimicry
She is known as the "queen of computer code" after helping the US Navy create the Mark I and contributed to COBOL, the language that helped computers understand commands.
Grace Hopper
True or False: Some planes can fly faster than the speed of sound.
True! Supersonic planes can fly faster than the speed of sound.
PEMDAS stands for this.
Parentheses (), Exponents, Multiplication/Division, Addition/Subtraction.
Brains and computer systems compute this word for information coming in to be processed.
input