Soils in the Environment
What is soil made of?
Rock particles, water, air, and living things.
What is a structure?
Something that is built or constructed.
What do seeds grow into?
Plants.
What is a force?
A push or a pull.
What planet do we live on?
Earth.
Why is soil important?
It helps plants grow.
What shape makes a structure strong?
A triangle.
What are the main parts of a plant?
Roots, stem, leaves, flower, and seeds.
What force pulls objects toward Earth?
Gravity.
What gas do plants take in from the air?
Carbon dioxide.
How can people protect soil?
Plant vegetation, reduce pollution, and prevent erosion.
Why do builders test structures?
To make sure they are strong and safe.
What does a plant need to grow?
Water, sunlight, air, nutrients, and space.
What happens when you push an object?
It moves away from you.
What is the largest organ in the human body?
The skin.
Name one living thing found in soil.
Earthworms, insects, fungi, or bacteria.
What is the purpose of a foundation?
To support a structure and keep it stable.
What is pollination?
The transfer of pollen from one flower to another.
What force slows moving objects?
Friction.
Why do we have seasons?
Because Earth is tilted as it moves around the Sun.
How can soil be damaged?
Erosion, pollution, or loss of vegetation.
Why are bridges designed with supports and braces?
To make them stronger and more stable.
Explain the life cycle of a flowering plant.
Seed → germination → seedling → mature plant → flower → seeds.
Explain the difference between a push and a pull using an example.
A push moves an object away; a pull brings it closer.
A plant is placed in a dark closet for two weeks. Predict what will happen and explain why.
The plant will become weak, pale, and may die because it needs sunlight to make food.