MATTER
All particles are always doing this.
What is moving?
These particles occupy the nucleus of an atom and have a charge of +1.
What are protons.
In an ecosystem, rocks, water, and sunlight are all examples of this.
What are abiotic factors?
In charging by conduction, a positively charged object touches a neutral object; the neutral object gains this charge
What is positive?
(the charges balance out when charging by contact)
This "cloud" of rock and dust is the first step in the formation of new stars.
What is a nebula?
Metals typically exhibit these three physical properties.
What are lustrous, malleable, conductive, ductile, solid at room temp. (any three)
An atom with a mass number of 22 and an atomic number of 10 would have this many neutrons.
What is 12?
A grasshopper eats grass, and a lizard eats grasshoppers. In this food chain, the lizard is this level of consumer.
What is secondary?
Charging an object by induction is temporary, but can become permanent if you do this to the object.
What is ground it (or grounding)?
This unit is used to measure distances in the Solar System, and is defined as the distance between the Sun and the Earth.
What is the Astronomical Unit?
This term describes materials that can be stretched out easily into thin wires.
What is ductility?
Alkali metals need to do this to obtain a full valence electron shell.
What is lose one electron?
The pesticide DDT caused the endangerment of Bald Eagles by making their eggs brittle. These two terms describe how the pesticide built up in the Bald Eagles.
What are bioaccumulation and biomagnification?
Too much current in a circuit can lead to a fire. This device can be added to the circuit to prevent overheating.
What is a fuse?
A comet's tail is always facing this direction.
What is away from the Sun?
Dissolving Sodium Chloride in water, or evaporating water into vapour, are both this type of change.
What is a physical change?
A neutral atom with 12 protons would have this many valence electron shells.
What is three? (2, 8, 2) (BONUS - what element is this?)
This term describes all of the living species in a particular space, but does not include their environment around them.
What is a community?
In a circuit with a 12V battery and a 5A current, lightbulb 1 has 3A of current. Lightbulb 2 is parallel to lightbulb 1, and will therefore have this much current AND voltage.
What is V=12V, I=2A.
(In parallel branches, potential difference is equal to the source, and current adds up to current at the source.)
These are the 4 Gas Giant planets.
What are Jupiter, Saturn, Uranus, Neptune?
In a graph where mass is on the Y axis and volume is on the X axis, finding the slope will give us this physical property of a substance.
What is density?
These two scientists both contributed to the atomic model that we use today in Grade 9 Science!
Who are Bohr and Rutherford?
What is intraspecific competition?
At the Rogers Centre for the Eras Tour, Taylor Swift's speakers use 28,800J of energy to produce enough sound. The speakers are rated to have a current of 20.0A over a period of 2.0 minutes. Solve for the VOLTAGE of the speakers.
What is 12 volts.
-convert time from minutes to seconds
-find Charge using Q = I * t
-find Potential Difference using V = E / Q
A supernova is the explosive death of a large star, which can leave behind either of these two things.
What is a neutron star or a black hole?