Table sugar and salt are both examples of
a) atoms
b) elements
c) pure substances
What are pure substances
100
Give the definition of weight?
What is the measure gravity on an object.
100
Dissolving salt in water is a form of what type of change?
What is Physical
100
The energy of matter in motion is called:
a) Kinetic
b) potential
c) electromagnetic
What is Kinetic
100
Anything that has mass and takes up space
What is matter
200
Substances that cannot be broken down into other substances are:
What is an element
200
The measurement of how much matter an object contains
What is mass
200
Burning wood is an example of what type of change?
What is chemical.
200
A ____________ is made up of 2 or more substances
What is a chemical
200
If you heat a liquid and measure it's temperature at its boiling point you are measuring
What is a physical property
300
Define an atom
What is the smallest particle of an element.
300
The measurement of how much mass is contained in a given volume
What is Density
300
The ability to do work or cause change.
What is energy
300
Photosynthesis is an example of taking the suns energy and turning it into what type of energyas it makes it's own food?
What is chemical energy
300
How do you measure the volume of an irregular obect like a marble.
What is submerge it in water in a graduated cylinder
400
What holds atoms of a molecule together?
What is a chemical bond
400
Find the density of a block of wood with a volume of 50 cm3 and a mass of 100 g.
What is 2g/cm3
400
Fireworks exploding in the sky and giving off light is an example of :
Endothermic change or exothermic change
What is Exothermic
400
Visible light from the sun, radio waves, waves froma a microwave that cooks your food are all examples of:
a) electrical energy
b) electromagnetic energy
c) potential energy
What is electromagnetic energy
400
What tool to scie3nts use to measure volume of a liquid?
What is a graduated cylinder
500
Lemonade is classified as a
What is mixture
500
Give an example that was used in the book and on our homework that shows an endothermic change
What is ice melting
500
How do liquid water, ice, and water vapor differ from one another?
What is they are all different states of matter.
500
What characteristics listed below do photosynthesisand combustion NOT share?
a) both involve a chemical change
b) both are endothermic
c) both change energy from one form to another