Spell the following word ?
What is motion?
A change in the position of an object compared to another object (related term: move, movement) is
What is motion?
This results in a new substance and is permanently changed.
______________ change
Chemical change
Spell the following word.
What is surface?
What happens when you burn a candle?
A. Oxygen
and heat are created by burning the candle.
B. A chemical change occurs and both light and heat energy are released.
C. The atoms and molecules in the candle are completely destroyed.
D. A physical change occurs and both light and heat energy are released.
What is D. A physical change occurs and both light and heat energy are released.
What is a compound made of hydrogen and oxygen?
What is water?
Gravity pulls objects towards the earth. True or false
What is true?
In a large bowl, London dissolved 5 grams of salt in 1 liter of warm water. Then she let the bowl sit uncovered on a shelf. When he looked in the bowl after two weeks, he saw __________.
A. water, but no salt
B. liquid salt crystals
C. solid salt crystals
D. nothing
What is C. solid salt crystals?
When two objects are close but they don't touch, are they effected by gravity.
What is yes?
This is a mixture in which a solid and a liquid or two liquids are mixed so evenly, that it is not possible to see the separate particles
What is solution?
When Max shoots his bow and arrow at the target, he has to aim higher than the bullseye.
Why does he not aim directly at the bullseye?
What is because Gravity pulls the arrow down as it flies.
A force that exists between any two objects that have mass is
What is gravity?
The top of an object; the outside of an object; the boundary between two objects or materials is called the _____________________.
What is surface?
Spell the following word.
What is gravity?
a heterogeneous mixture in which moderate sized particles are suspended in a liquid or gas where they are supported by buoyancy
What is suspension
Draw a line under around all of the situations that are examples of chemical changes?
Striking a match chopping branches
ice cream melting on a hot day
eating an egg on the stove
A chain rusts from being outside
What is Striking a match, and a chain rusts from being outside?
Read all the following statements. Select the statements that are correct information about changes in matter.
A. Light does not play any roll in chemical changes, but heat does.
B. chemical changes can happen slowly or quickly.
C. Both physical and chemical changes make new substances.
D. The new substances created during chemical change has different properties than the original substance.
What is B. chemical changes can happen slowly or quickly. and D.The new substances created during chemical change has different properties than the original substance.?
Spell the word
What is weight
How is melting different from freezing?
What is Melting happens when you add heat to a substance and it changes from a solid to a liquid. Freezing happens when heat is taken away from a substance and it changes from a liquid to a solid.
A solution is made when a solid, gas, or liquid is dissolved in another solid, gas, or liquid. Which is the best example of a solid dissolved in a liquid?
A. car exhaust
B. ocean water
C. root beer
D. toothpaste
What is B.ocean water?
How can the dissolved solids be removed from sea water?
A. Mix sugar into the sea water.
B. Pass an electric current through the sea water.
C. Pour the sea water through a filter.
D. Boil away the water, or let it evaporate.
What is D. Boil away the water, or let it evaporate.?
Why do we use heat to cook raw meat? We use heat to cook raw meat to ______ that make the meat safe to eat.
A. grow more bacteria
B. make physical changes
C. make chemical changes
D. increase cells
What is C. make chemical changes?
Food is digested in your stomach. This is an example of a ______, which is difficult to reverse.
A. physical change
B. chemical change
C. mixture
D. solution
What is B. chemical change?
Sam said the greater the mass of two objects, the smaller the gravitational pull between them. The larger the distance between two objects the greater the gravitational pull between them?
False ?
When water freezes it will ________.
A. sink
B. condense
C. Contract
D. expand
What is D. expand?