4th Grade Science Test 5 Flashcards
How much of the earth is covered by water
three fourths
What is anything the takes up space and has weight
matter
What are the smallest piece of a substance that still has the qualities of that substance?
molecules
What makes up water?
hydrogen and oxygen
Molecules in which state (solid, liquid, gas) are packed close together?
solid
Molecules in which state (solid, liquid, gas) are the fastest-moving molecules?
gas
Water has a high ___, that allows object to float on it.
surface tension
Water changes to ice at what temperature?
32 degrees Fahrenheit
What causes molecules to move more rapidly?
heat
Solid, Liquid, Gas or Not Matter: air
gas
Solid, Liquid, Gas or Not Matter: ice
solid
Solid, Liquid, Gas or Not Matter: patriotism
not matter
Solid, Liquid, Gas or Not Matter: milk
liquid
Solid, Liquid, Gas or Not Matter: tree trunk
solid
Solid, Liquid, Gas or Not Matter: water vapor
gas