Science Challenge for Grade 6

What is a common technique used in waste management?

• Recycling

• Composting

• Landfilling

• Incineration

Name one source of electricity.

• Solar energy

• Wind power

• Hydroelectric power

• Nuclear fission

What are the two main types of circuits?

• Direct and Alternating Circuits

• Open and Closed Circuits

• Analog and Digital Circuits

• Series and Parallel Circuits

What is a property of a magnetic field?

• A magnetic field has both direction and magnitude.

• A magnetic field does not affect moving charges.

• A magnetic field is always uniform in strength.

• A magnetic field only has magnitude.

Give an example of a renewable energy source.

• Wind energy

• Coal

• Solar energy

• Natural gas

How does recycling help in waste management?

• Recycling consumes more energy than it saves.

• Recycling helps in waste management by reducing landfill waste, conserving resources, saving energy, and decreasing pollution.

• Recycling has no impact on resource conservation.

• Recycling increases landfill waste and pollution.

What is the difference between series and parallel circuits?

• In series circuits, the voltage is divided equally among all components, unlike in parallel circuits.

• Series circuits have a single path for current, while parallel circuits have multiple paths.

• Both series and parallel circuits have the same number of paths for current.

• Series circuits can have multiple paths, while parallel circuits have a single path.

What is the role of a battery in an electric circuit?

• To store electrical energy for later use.

• To convert electrical energy into mechanical energy.

• To regulate the flow of current in the circuit.

• The role of a battery in an electric circuit is to supply electrical energy.

What is the effect of distance on the strength of a magnetic field?

• The strength of a magnetic field increases with distance.

• The strength of a magnetic field decreases as the distance from the source increases.

• Distance has no effect on the strength of a magnetic field.

• The strength of a magnetic field fluctuates randomly with distance.

Name a non-renewable source of energy.

• Wind

• Coal

• Solar

• Hydropower