analysis
A careful and detailed examination of something in order to understand or explain it
The analysis of the water samples showed that the river was polluted.
classification
The process of organizing things into groups based on their shared features or qualities
The classification of animals helps scientists understand the relationships between different species.
conclusion
A final decision or judgment reached after thinking carefully about the results of a study or experiment
After reviewing all the data, the team reached the conclusion that the new medicine was effective.
data
Facts, numbers, or information collected for use in research or study
The researchers collected data from over one thousand patients for their study.
ecosystem
All the living things in an area together with their physical environment, working as a system
Cutting down forests can seriously damage the local ecosystem and harm many species.
evidence
Facts, objects, or signs that help you believe that something is true or real
The scientists found strong evidence that exercise improves mental health.
experiment
A scientific test done to study what happens under certain conditions and to discover or prove something
The students did an experiment to see how temperature affects the speed of ice melting.
hypothesis
An idea or explanation that you propose and then test through experiments or research
The scientist formed a hypothesis that plants grow faster with more sunlight.
method
A particular way of doing something, especially in an organized or planned manner
The teacher explained the method the students should use to measure the chemical reactions.
molecule
The smallest unit of a substance that still has all the properties of that substance, made of two or more atoms joined together
A water molecule is made of two hydrogen atoms and one oxygen atom.
observation
The act of carefully watching and noting something in order to learn from it
Through careful observation, the biologist noticed that the birds changed their behavior in winter.
organism
A living thing, such as a plant, animal, or bacterium
Bacteria are tiny organisms that can be found almost everywhere on Earth.
phenomenon
Something that exists or happens in the world, especially something unusual or interesting that is studied
The northern lights are a natural phenomenon that attracts tourists from around the world.
radiation
Energy that is sent out in the form of waves or particles, such as heat, light, or nuclear energy
The doctor warned the patient about the risks of too much exposure to radiation during X-rays.
research
Careful and organized study of a subject to discover new facts or information
New research shows that drinking coffee in moderation can be good for your heart.
results
The facts or information obtained at the end of an experiment or study
The results of the survey showed that most students preferred studying in the morning.
sample
A small part or amount of something that represents the whole group being studied
The doctor took a blood sample to test for signs of infection.
significant
Important, large, or noticeable enough to have an effect or be worth paying attention to
The researchers found a significant difference in test scores between the two groups.
theory
A set of ideas or principles used to explain why or how something happens, usually supported by evidence
Darwin's theory of evolution changed the way people understand life on Earth.
variable
A factor or condition in an experiment that can be changed or that may change on its own
In the experiment, temperature was the variable that the scientists controlled carefully.
Match the vocabulary word with its correct definition.
| # | Ans. | Word | Definition |
|---|
Complete each sentence with the correct word from the word bank.
Synonyms are word pairs whose meanings are the same or nearly the same. Big and large are synonyms. From each group of four words below, click the two that are synonyms.