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WorksheetsScience Challenge
Total questions: 15
Worksheet time: 8mins
What is a chemical reaction?
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
A chemical reaction is a physical change in matter.
A chemical reaction is a mathematical equation.
A chemical reaction is a biological process.
Name the process by which plants make their food.
Respiration
Fermentation
Transpiration
Photosynthesis
What is the unit of electric current?
Ampere (A)
Volt
Joule
Ohm
Which organ is responsible for pumping blood throughout the body?
brain
stomach
heart
liver
What happens when you mix baking soda and vinegar?
Carbon dioxide gas is released.
The mixture becomes highly flammable
The mixture produces a foul odor
The mixture turns into a solid
What is the role of producers in an ecosystem?
Producers consume food from other organisms.
Producers are responsible for decomposing organic matter.
Producers are only found in aquatic ecosystems.
Producers create food through photosynthesis or chemosynthesis.
What is the function of the nucleus in a cell?
Energy production
Control center and contains genetic material
Waste elimination
Cell wall formation
What is the main source of energy in most ecosystems?
Sunlight
Volcanic eruptions
Moonlight
Wind
What is the function of the nervous system?
Produce hormones for growth.
Transmit signals and coordinate bodily functions.
Regulate body temperature.
Digest food and absorb nutrients.
What is the formula for Ohm's Law?
I = V + R
I = R / V
I = V / R
I = V x R
How do muscles work in the human body?
Muscles work by generating heat through friction
Muscles work by absorbing nutrients from the bloodstream
Muscles work by expanding and contracting
Muscles work by contracting and relaxing in response to signals from the nervous system.
What is the role of decomposers in an ecosystem?
Decomposers create new organisms in an ecosystem
Decomposers help in the process of photosynthesis in an ecosystem
Decomposers break down dead organisms and organic matter into simpler substances, releasing nutrients back into the ecosystem for other organisms to use.
Decomposers reduce the amount of nutrients in an ecosystem
What is the difference between renewable and non-renewable energy sources?
Renewable energy sources are more expensive than non-renewable sources
Renewable energy sources are less efficient than non-renewable sources
Non-renewable energy sources are better for the environment than renewable sources
Renewable energy sources can be replenished naturally and are sustainable, while non-renewable energy sources are finite and will eventually run out.
What is the function of the respiratory system?
Transport of nutrients
Exchange of oxygen and carbon dioxide
Digestion of food
Regulation of body temperature
What is the relationship between voltage, current, and resistance in an electrical circuit?
V = I / R
V = I ^ R
V = I + R
V = I * R
