Space
What is the second planet from the Sun that about the same size as Earth?
Venus
What is a change in appearance only. They do not produce a new substance; an example includes shredding paper
physical change
includes a letter that identifies the element such as H (for Hydrogen) and B (for Boron)
Atomic Symbol
the smallest unit that can be said to be alive
cells
someone who solves problems by using science, math, and/or technology
engineer
What are rock like objects made of stone, orbit the Sun in the asteroid belt between the orbits of Mars and Jupiter?
asteroids
a substance that has no definite shape and no definite volume. There is a lot of space between the particles; and they move rapidly which means they are not close at all
gas
a substance that cannot be separated or broken down into simpler substances by chemical means
element
a liquid substance that fills the inside of the cell and supports cell structures
cytoplasm
an early sample or model of a model built to test a concept
prototype
What is the term for any small object that orbits a larger object?
Satellites
the measurement of how much space something takes up
volume
a number placed in front of a chemical formula to show how many molecules of the substance are represented in the chemical equation
coefficient
organelle that converts energy in food to a form of energy that cells can use
mitochondria
What is the name of the original electromagnetic wave, which is known as a that is modulated?
carrier wave
a body orbiting around the Sun or moon, the time it takes a planet to make one complete ___________ is called a year
revolution
movement, or a change in distance between an object and a reference point
motion
a sample of matter that has specific chemical and physical properties, such as appearance, melting point, and reactivity
What is the term for a plants response by growing toward a light source
phototropism
What is information that is not continuous? Instead, this information consists of distinct values
digital
Sometimes stars get trapped in this; its gravity pulls in the mass and destroys it
a black hole
This law tells us that acceleration requires a force. It tells us how much force is needed to accelerate.
Newton's Second Law
a solid that is produced as a result of a chemical reaction in a solution
precipitate
Two guard cells control the opening and closing of each of these for plants. They open to allow air to move in and out. They close to prevent water loss.
stomata
occurs when the products of one system, or part of a system, affect another system or part of a system
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