Science Skills ðŸ§
What tool is best for looking at small objects?
Microscope
What is the basic unit of life?
The cell
What is DNA?
A molecule that stores genetic information
What is natural selection?
Individuals with helpful traits survive and reproduce more.
What is an ecosystem?
All living and nonliving things in an area.
Why do scientists use graphs?
To show patterns, trends, or relationships in data.
Name one difference between plant and animal cells.
Chloroplasts; cell wall
What is a gene?
A section of DNA that controls a trait.
What is a cladogram?
A branching diagram showing the evolutionary relationships between species.
Name one producer.
Any plant or algae (e.g., grass, trees).
Which variable do you change in an experiment?
Independent variable
Put these in order: tissue, organism, organ, cell.
Cell -> tissue -> organ -> organism
What is the difference between genotype and phenotype?
Genotype = genes; phenotype = visible trait.
What is speciation?
When populations split and become different species.
Explain how energy moves through an ecosystem.
It flows.
Why is sample size important?
To make results more reliable and reduce error.
What makes a cell eukaryotic?
A nucleus
Why do siblings look different?
They inherit different allele combinations.
What are the three ingredients of natural selection?
Explain how matter cycles in an ecosystem.
It moves between living and non-living parts of an ecosystem.
Why are units important in science?
So measurements are consistent, accurate, and understandable.
Who is calling???
Mr. Pork ...
How does variation help a species survive?
Variation increases chances that some individuals survive changes.
6 ...
7
Which one is bigger: a food web or a food chain?
Food web