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Jeopardy!. Static Electricity. Physical and Chemical Changes. Our Solar System. Food Webs and Chains. Carbon & Nitrogen Cycles. Community Interactions. Static Electrictity. Changes in Matter. Solar System. Food Webs. Community Interactions. Carbon and Nitrogen. $100. $poo100.
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Static Electrictity Changes in Matter Solar System Food Webs Community Interactions Carbon and Nitrogen $100 $poo100 $100 $100 $100 $1hi00 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500
1. Charging by induction 2. Charging by friction 3. Charging by conduction
Charging by friction is when you rub two materials together and one has a stronger hold on electrons than the other, thereby charging the two objects
A conductor is a material that allows electrons to move easily through it. An insulator is a material that does not allow electrons to move easily through it.
What happens when a neutral object comes into contact with a charged object?
A transfer of charges takes place and the neutral object becomes charged.
What is the difference between a Chemical property and a physical property?
Chemical changes are changes that cannot be undone and involve a chemical reaction. i.e.. Color, smell, energy produced Physical changes are changes that can be undone. i.e.. Change of state, shape, size
What type of change is this? An egg is placed in boiling water until it becomes a hard-boiled egg.
If two, clear, solutions are mixed with each other, and a solid is formed at the bottom of the container, what type of change is this?
Chemical change because in order for a solid to be formed, a chemical reaction must take place.
If a book was ripped in half and then placed in a fire, what type(s) of changes would have happened
Both chemical and physical changes. The book being ripped is an example of a physical change and the burning is a chemical change
Only 8 (remember, Pluto is not a planet)
It is a solar system where the sun is the centre (planets orbit around sun)
It is a solar system where the earth is the centre (planets orbit around earth)
A comet is a large block of ice orbiting around a celestial body.
What does a Herzsprung-Russel diagram show? (HR diagram)
It shows the organization of stars organizing them by brightness and temperature
A food web is a representation of feeding relationships within a community.
What percent of energy is transferred through each tropic level?
Out of the following, which is a primary consumer: Lion, Wolf, Deer, Grass
1. Combustion of fuels 2. Respiration 3. Diffusion