Life Science
What is the basic unit of life?
What are the three main types of rocks?
The three main types of rocks are igneous, sedimentary, and metamorphic.
What is the definition of matter?
Matter is anything that has mass and takes up space.
What is an ecosystem?
An ecosystem is a community of living organisms and their interactions with their environment.
What is a hypothesis?
A hypothesis is a testable statement or prediction about the relationship between variables.
Name the process by which plants make their own food.
Photosynthesis
How does the water cycle work?
The water cycle includes processes such as evaporation, condensation, and precipitation.
What are the three states of matter?
The three states of matter are solid, liquid, and gas.
Name two renewable resources.
Two renewable resources are solar energy and wind energy.
Why is it important to conduct experiments?
It is important to conduct experiments to test hypotheses and gain insights into scientific questions.
What are the differences between a plant cell and an animal cell?
plant cells have cell wall and chloroplasts, animal cells do not
What causes earthquakes?
Earthquakes are caused by the movement of tectonic plates and the release of stress along faults.
What is the law of conservation of mass?
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.
What is the importance of biodiversity?
Biodiversity is important because it increases resilience in ecosystems and provides resources for food, medicine, and other needs.
What is the scientific method?
The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.
Explain the role of DNA in inheritance.
DNA (deoxyribonucleic acid) carries genetic information and is responsible for inheritance.
Name the layers of the Earth.
The layers of the Earth are the crust, mantle, outer core, and inner core.
Describe how an atom is structured.
An atom is structured with a nucleus (containing protons and neutrons) and electrons orbiting around it.
How do human activities affect the environment?
Human activities affect the environment through pollution, deforestation, habitat destruction, and climate change.
How do scientists communicate their findings?
Scientists communicate their findings through research papers, presentations, and discussions.
Describe the process of natural selection.
Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.
Explain the greenhouse effect.
The greenhouse effect is the warming of the Earth caused by greenhouse gases trapping heat in the atmosphere.
What is the difference between a chemical change and a physical change?
A chemical change results in a new substance, while a physical change does not change the substance's chemical composition.
Explain the concept of sustainability.
Sustainability is the ability to meet present needs without compromising the ability of future generations to meet their own needs.
What role does peer review play in science?
Peer review plays a role in ensuring the validity and reliability of scientific research by having other experts evaluate the work before publication.