NUTRITION & HEALTH
Name two essential nutrients your body needs.
Proteins and carbohydrates (others: fats, vitamins, minerals, water).
What is an addiction?
A strong need or habit that is hard to stop, like smoking or using drugs.
What are the 3 states of matter?
Solid, liquid, gas.
How do plants get their energy?
From sunlight through photosynthesis.
What is pollution?
The contamination of air, water, or land by harmful substances.
What is a balanced diet?
A diet that includes the right amounts of all nutrients.
Name one sign of puberty in boys.
Voice deepens or facial hair begins to grow.
What happens to water when it freezes?
It turns into ice (solid).
What is a food chain?
A sequence showing who eats whom in an ecosystem.
Name one way humans affect water ecosystems.
Throwing trash or chemicals into rivers and oceans.
What is an eating disorder?
And give an example
A serious condition related to unhealthy eating habits, like anorexia or binge eating.
Name one sign of puberty in girls.
Development of breasts or menstruation begins.
What is a physical change?
A change that doesn’t create a new substance, like melting or cutting.
What do plants need to grow?
Sunlight, water, air (carbon dioxide), and nutrients from soil.
What is an invasive species?
A species that is not native and harms the ecosystem.
Why is fiber important for your body?
It helps digestion and keeps the digestive system healthy.
How can you avoid addictions?
wait until you are older to try certain things or abstain from it.
What is a chemical change?
A change that creates a new substance, like burning or rusting.
What is the difference between a food chain and a food web?
A food chain is a single path; a food web shows many connected paths.
How do humans affect the air?
By burning fossil fuels, which release harmful gases into the air.
What is puberty?
Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.
How can a person get help for an addiction?
By talking to a trusted adult, going to therapy, or joining a support program.
Give one example of a chemical change.
Baking a cake or iron rusting.
What is a community in an ecosystem?
All the different populations of organisms living together in the same area.
Name one way humans impact space.
By leaving space junk from rockets and satellites.