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WorksheetsAtomic Kitchen Project - Physical Science Concepts
Total questions: 25
Worksheet time: 7mins
What is a substance composed of a single type of atom?
compound
element
mixture
molecule
What is saltwater?
Element
Compound
Homogeneous mixture
Heterogeneous mixture
Water contains twice as many hydrogen atoms as ______ atoms.
carbon
oxygen
sodium
chlorine
What gas is produced when sodium bicarbonate is heated or reacts with an acid?
oxygen
carbon
carbon dioxide
hydrogen dioxide
A new compound is formed when:
Two substances mix together
Two elements chemically combine
One compound dissolves in another
Two compounds are physically separated
How many total atoms are in one molecule of water?
1
2
3
4
One molecule of water is composed of _________ different elements.
1
2
3
4
What is true about the states of matter
a solid is less dense than a gas
a solid is more dense than a gas
a liquid will turn into a solid when heat is applied
a gas will turn into a liquid when heat is applied
What is true about states of matter?
a gas contains more kinetic energy than a liquid
a gas contains less kinetic energy than a liquid
a gas and a liquid have equal amounts of kinetic energy
a gas and a liquid do not have kinetic energy
True or False - Increasing temperature means increasing the kinetic energy of the atoms or molecules in a substance?
True
False
A student freezes water into an ice cube. When the student places the ice cube in liquid water, it floats. Which statement best describes why the ice cube floats?
Solid water and liquid water do not have density
Solid water and liquid water have equal densities
Solid water is more dense than liquid water
Solid water is less dense than liquid water
A student mixes salt with water. The salt dissolves in the water. What is the best way for this student to separate the salt from the water?
Freeze the saltwater into ice cubes
Boil the saltwater until the water evaporates
Use a coffee filter to separate the salt crystals from the water
Use a magnet to separate the salt crystals from the water
