Biology
What term describes a community of living organisms interacting with their physical environment?
Ecosystem
What is the difference between a physical change and a chemical change?
A physical change changes the form/state but not the substance while a chemical change creates new substances
What do we call the flow of electric charge through a conductor?
Electric current
Which planet is known as the Red Planet?
Mars
If Ms. Rea could see anyone in concert, who would it be?
The Lumineers !!!!!!!!!!!!!
What process do plants use to convert light energy into chemical energy and produce oxygen?
Photosynthesis
What is the name of the chart that organizes elements by increasing atomic number and recurring chemical properties?
Periodic Table
Describe the difference between static electricity and current electricity.
Static: buildup of charge at rest; current: continuous flow of charges in a conductor
Which planet in our solar system has the most moons?
Saturn
Name of the author of "The Hunger Games" series?
Suzanne Collins
Define biodiversity. Give one reason why biodiversity is important for ecosystem stability.
Biodiversity = variety of life in a particular habitat or on Earth; importance example: maintains resilience, provides ecosystem services
What is the difference between a homogeneous mixture and a heterogeneous mixture?
Homogeneous mixtures are uniform throughout (e.g., saltwater), while heterogeneous mixtures are not (e.g., salad)
What charge will a material take on if it gains electrons?
Negative charge
Imagine that you are explaining to Grade 3 students why it gets dark at night and bright during the day. What would you tell them?
It is light during the day and dark at night because the Earth rotates on its axis every 24 hours. When your location faces the Sun, it is daytime (light), and as Earth spins, that location turns away from the Sun, causing nighttime (darkness).
Which country invented the sport of curling?
Scotland
Explain what a food web shows that a simple food chain does not. Name one consequence of removing a top predator from a food web.
Food webs show multiple feeding relationships and energy flow between many organisms; removing a top predator can cause trophic cascade (overpopulation of prey, vegetation loss)
Describe the difference between an ionic bond and a covalent bond in terms of electron movement.
Ionic bond: transfer of electrons (forming ions); covalent bond: sharing of electrons
Describe the difference between series and parallel circuits.
Series circuits feature a single path for current, causing all components to share voltage and fail if one breaks.
Parallel circuits offer multiple paths, providing equal voltage to each component and allowing others to function if one fails.
What causes a solar eclipse?
A solar eclipse is caused by the moon coming in between the sun and Earth. The sunlight is blocked (partially) and a shadow falls on Earth.
Who is performing at the 2026 Super Bowl?
Bad Bunny
Describe two human activities that reduce biodiversity and explain one effect that can follow from habitat fragmentation.
Examples: deforestation, pollution, overhunting/fishing; effect: reduced genetic diversity, altered nutrient cycles, local extinctions
Identify the three main subatomic particles in an atom and give the approximate charge of each.
Protons (+), neutrons (0), electrons (−)
Explain what electrical grounding (earthing) is and give two reasons why grounding is important for safety and device operation.
Grounding connects electrical systems/devices to the Earth so excess charge or fault current has a low-resistance path away from users and equipment. Reasons: (1) protects people from electric shock by directing fault currents safely to ground; (2) protects devices and reduces fire risk by preventing charge buildup and providing a clear path for surge dissipation.
If you were standing on the surface of the moon and accidentally dropped your phone, what would happen to it? Would it move? If so, in which direction?
The camera will fall to the surface due to the force of gravitational attraction between the Moon and all objects on it.
However, it is important to note that this gravitational attraction is about 1/6th of that on Earth. This means that objects will fall to the surface at around 1/6th of the rate (1.6m/s²) that they would on Earth (9.8m/s²).
Which animal can hold its breath longer than a dolphin?
A sloth!