Soil &
Natural Resources
Natural Resources
What is soil made of?
Soil is made of minerals, organic matter, air, and water.
How many bones are there in the human body?
206 bones
What kind food is at the top of the Food Pyramid?
Fats and Sugars
Why is water important?
It's essential for drinking, hygiene, and growing food.
What are the 3 physical states of matter?
Solid, liquid, and gas.
What are the 5 main parts of the plants?
Roots, Stem, leaves, Flower and Fruit
How is soil formed?
Soil forms from the breakdown of rocks and organic matter over time.
What are the main parts of the musculoskeletal system?
Bones, muscles, joints.
Where do vegetables come from?
From plants.
Name one use of water at home.
Drinking, cooking, cleaning, or watering plants.
What is evaporation?
When a liquid turns into a gas.
What are phanerogams?
Plants with visible flowers and seeds.
What are the three main soil layers (horizons)?
Topsoil, subsoil, and bedrock.
What is the function of bones?
To support the body, give movement and protect organs.
What are the three food origins?
Vegetable, animal, and mineral.
What causes water pollution?
Dumping garbage, chemicals, or oil into water sources.
What is condensation?
When gas turns into a liquid.
What are cryptogams?
Plants without flowers or seeds (like mosses and ferns). They reproduce by spores.
Name two types of soil.
Sandy soil, clay soil, Rocky soil.
What connects muscles to bones?
Tendons.
What is the food pyramid used for?
To guide a balanced daily diet.
How can we conserve water?
Turn off taps, fix leaks, collect rainwater.
What are transparent, translucent, and opaque materials?
Transparent: clear, translucent: blurry light, opaque: blocks light.
What are gymnosperms?
Plants with seeds not inside a fruit, usually in cones.
What is a renewable resource? Give two examples.
A resource that regenerates naturally. Examples: sunlight, wind.
Why is exercise important for the musculoskeletal system?
It strengthens bones and muscles.
What are energy-giving foods?
Foods that provide energy, like rice, bread, and oil.
What are the steps in water purification?
Collection, Decanting, Flocculation, Filtration and Desinfection
Name two natural sources of energy.
Sun and wind.
What are angiosperms?
Flowering plants with seeds inside fruits.
Name two non-renewable resources of Ecuador.
Minerals (e.g., copper), fossil fuels (e.g., oil).
Name two ways to care for your musculoskeletal system.
Eat calcium-rich foods and do regular exercise.
What are building foods?
Foods that help grow and repair, like meat, milk, and eggs.
What are the main characteristics of water?
It’s colorless, odorless, tasteless, and takes the shape of its container.
What is the difference between reflection and refraction?
Reflection bounces light back, refraction bends light.
Name one use of gymnosperms and one of angiosperms.
Gymnosperms: wood for construction; Angiosperms: fruits and food.