- educated guess
Your answer:
hypothesis
problem
constant
variable
- factor that can be changed in an experiment
Your answer:
metalloid
substance
variable
neutron
- anything that has mass and takes up space
Your answer:
matter
base
gas
compound
- positively charged particle in the nucleus of an atom
Your answer:
friction
proton
acceleration
neutron
- SI unit for mass
Your answer:
mass
kilogram
base
acid
- elememt that has characteristics of both metals and nonmetals
Your answer:
potential energy
gas
metalloid
nucleus
- rate of change of velocity
Your answer:
physical change
chemical change
electron
acceleration
- positively charged central part of an atom
Your answer:
nuclear energy
atom
kinetic energy
nucleus
- elements that are usually gases or brittle solids; poor conductors of heat
Your answer:
physical change
gas
nonmetal
electron
- variables that stay the same in an experiment
Your answer:
constant
simple machine
friction
liquid
- number of protons in an element; top number on the periodic table
Your answer:
compound
atomic number
acid
mass number
- uncharged particle located in the nucleus of an atom
Your answer:
mass
neutron
compound machine
electron
- amount of matter in an object
Your answer:
potential energy
proton
mass
kilogram
- negatively charged particle that surrounds the nucleus of an atom
Your answer:
element
metal
base
electron
- material that cannot be broken down any further; classified as metal, metalloid, or nonmetal
Your answer:
kinetic energy
element
substance
acid
- element that is a conductor of electricity;is shiny and metallic
Your answer:
gas
metal
solid
compound
- can change in size, shape, form or state of matter
Your answer:
friction
base
physical change
chemical change
- substance produced when elements are combined
Your answer:
nucleus
cell
compound
atom
- slows an object down;rubbing force that acts against the motion between two touching surfaces.
Your answer:
mass
friction
variable
potential energy
- a device that has only one movement
Your answer:
gas
simple machine
compound machine
neutron
- definite volume, but no definite shape
Your answer:
solid
gas
plasma
liquid
- energy an object has due to its motion
Your answer:
element
base
kinetic energy
potential energy
- matter that has no definite shape or volume
Your answer:
liquid
electron
gas
kilogram
- change of a material into a new material with different properties
Your answer:
electron
chemical change
constant
physical change
- device made up of a combination of two or more simple machines
Your answer:
matter
simple machine
compound machine
substance
- sour and strong substance
Your answer:
base
solid
constant
acid
- matter that has the same composition and properties throughout
Your answer:
speed
substance
acceleration
metal
- energy stored in an object due to its position
Your answer:
proton
element
kinetic energy
potential energy
- matter with a definite shape and volume; tightly packed particles
Your answer:
mass
solid
liquid
neutron
- bitter and slippery substance
Your answer:
base
metal
acid
compound