Physical changes
Is a melted popsicle an example of a physical change?
What is YES? You can melt and refreeze a popsicle and it will still be a popsicle.
Is rust an example of a chemical change?
What is YES? You cannot change rust back into the metal is was before; therefore, it is a chemical change.
What is static electricity caused by?
an imbalance between negative and positive charges in an object.
The names of the four layers of the earth.
What is inner core, outer core, mantle and crust
This refers to a change in body form, during animal's growth and development.
What is metamorphosis?
Is Alka-Seltzer and water an example of a physical change?
What is NO? When you mix Alka-Seltzer and water, bubbles form, which indicates a chemical change as taken place.
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change?
What is the current in an electrical?
the flow of electricity in an electronic circuit, and to the amount of electricity flowing through a circuit?
___________ and ___________ are common forms of chemical weathering.
What are acid rain and oxidation?
The stages of this are egg, nymph, and adult.
What is incomplete metamorphosis?
Name a food that is an example of a physical change.
What is a salad or trail mix?
Name a food that is an example of a chemical change and explain why.
What is a cake, because you cannot turn a cake back into the eggs, flour, sugar, etc. that you mixed together?
Electricity is produced in hydroelectric plant when moving water turns a turbine. Describe the energy transformation from the turning turbine to electricity.
Kinetic to electrical energy
Creates landforms such as valleys, canyons, caverns or floodplains.
What is water erosion?
The stages of this life cycle are egg, larva, pupa, and adult.
What is complete metamorphosis?
Explain how water could be an example of a physical change.
What is freezing and melting water to and from ice is an example of a physical change?
True or False. Turning peanuts to peanut butter is an chemical change.
What is FALSE? To make peanut butter, you grind up roasted peanuts, so nothing new is being created.
Electromagnetics energy travels through space in the form of
waves
Long Island and Cape Cod were created this way.
What are terminal moraines?
This is a type of life cycle, where an organism grows larger, without going through metamorphosis.
What is direct development?
CHALLENGE (not a quiz question): Explain how the water cycle an example of a physical change.
What is YES, it is a physical change, because water changes from a liquid/solid when it precipitates, to a gas when it evaporates, then forms back into a liquid when it condensates. Then the process repeats again with the same substance, WATER!
CHALLENGE (not a quiz question) Explain how a rocket launch is an example of a chemical change.
What is the fuel combines with another chemcial to produce large volumes of a hot gas that propel the rocket into space?
The total potential and kinetic energy of the particles of an object is the object's ______________
mechanical energy
The material that is produced by explosive volcanoes.
What is pyroclastic material
Since bats are blind, they use adapted ears that help them use sound to find their prey.
What is echolocation?