Matter
The Celsius scale is based on two fixed reference points. What are they?
100 C is water's boiling temperature
0 C is water's freezing temperatuer
Which type of force pushes parts of an object in opposite directions, often causing bending or breaking?
Shear
Which gas in Earth's atmosphere helps trap heat and contributes to warming Earth?
Carbon Dioxide
Humans rely on plants to produce which substance used in respiration?
Oxygen
Which celestial body has visible rings?
Saturn
Why does ice usually float on liquid water?
It has less density
Which property allows a temporary change in shape, like stretching a rubber band?
Elasticity
What is a factor that is part of a place's geographical location and can affect its climate?
Lattitude
What are the abiotic components of an ecosystem?
Non-living
Which technology is used to move across the surface of another planet?
a Rover
What is the state change called when a solid turns directly into a gas?
Sublimation
A student steps on an empty aluminum can and it stays crushed. Which property does this permanent change show?
Plasticity
What is the difference between weather and climate?
Weather describes short-term conditions on a given day; climate describes average conditions over many years.
Which part of a plant collects light needed for photosynthesis?
Chlorophyll
Ex-Alta 1 is best described as what?
Alberta's first satellite
When matter is heated, what happens to the particles in the particle model of matter?
They move faster; more space between particles; they expand
What is Newton's third law?
Every action has an equal and opposite reaction
How does living by a body of water affect the climate?
The climate will be milder
What do plants need for Photosynthesis?
Sunlight, Carbon Dioxide, and Water
In which direction does a comet's tail always point?
Away from the Sun
What happens to the volume and mass of a gas when it is heated?
Volume increases; mass does not change
A book is sitting on a table. What are the action-reaction forces involved?
Gravity is pressing the book down on the table. The table is pressing back up against the book with equal force.
Long-term measurements in northern Canada show permafrost is thawing. Which effect is most likely for communities built on permafrost?
It thaws and can damage buildings, roads, and infrastructure in northern communities.
Why are different ecosystems classified separately?
They each have unique climate patterns, vegetation, and animal populations.
Why are asteroids often irregular in shape while planets are round?
Planets have enough gravity to pull themselves into a round shape; asteroids do not.