Forces
This force pulls objects toward the center of the Earth and keeps our feet on the ground.
Gravity
An organism, like a plant, that can make its own food using sunlight.
producer
The very first step of the Engineering Design Process, where you figure out the issue you need to solve.
Ask, define the problem
The invisible path that a planet or moon takes as it travels around another object in space.
orbit
Unscramble this fundamental unit of life: L L E C
Cell
The force that resists motion when two surfaces rub against each other.
All the living (biotic) and non-living (abiotic) things interacting in a specific environment.
ecosystem
Limitations or restrictions on a design, such as a lack of time, money, or materials.
constraints
This natural satellite takes about 27.3 days to complete one revolution around Earth.
moon
Unscramble this form of energy you can hear: D N U O S
sound
When two forces acting on an object are equal in size but opposite in direction, the forces are said to be this, resulting in no change in motion.
balanced forces
A consumer that eats only other animals for energy.
carnivore
A working, full-scale model of a design used to test and see how it performs.
prototype
The massive galaxy of stars, gas, and dust that contains our solar system.
milky way
Unscramble this state of matter that expands to fill its container: A S G
Gas
This unit of measurement is used to quantify force, named after a famous scientist.
A symbiotic relationship where one organism benefits and the other is harmed (like a tick on a dog).
parasitism
The requirements or standards a design must meet to be considered successful.
criteria
This celestial object is so dense and has gravity so strong that nothing, not even light, can escape it.
black hole
Unscramble this place where a plant or animal naturally lives: T A B H I A T
habitat
The overall force acting on an object after all the individual forces are combined.
Net force
The maximum population size of a species that an ecosystem can sustainably support based on its available resources.
carrying capacity
Because the engineering design process repeats steps to improve a product based on testing, it is described by this 9-letter word meaning "repetitive."
iterative
The imaginary line that passes through Earth's center from the North to South pole, which is tilted at about 23.5 degrees.
earths axis
Unscramble this laboratory tool used to magnify tiny objects: P O I S C O R E M C
microscope