Rocks
What is a rock made of?
More than one mineral
A mineral is made up of many many materials. True or False?
False - only one
What is soil mainly used for?
To grow plants
What is the best type of soil for plants to grow in?
Humus/topsoil
What is something you will find in the soil if you dig it up that is useful to it?
Worms - fertilizer - dead leaves
Igneous Rock
What is the most common type of mineral we eat?
salt
What are metals made of?
Minerals like iron, nickel
True
Why are worms good for the soil?
Their castings give nutrients,
What type of rock happens under immense heat and pressure?
Metamorphic rock
What are 2 physical properties of minerals?
Lustre, streak, magnetism, hardness and transperency
Why does a plant need soil? List 2 reasons
To give it nutrients
To give it water
What are additives in our soil?
Things that are added to our soil to help plants grow.
Give three jobs of a root.
Gives nutrients
Gives water
Holds the plant in place.
What is the rock cycle?
It is when rocks are formed and reformed into other types of rocks.
What is the hardest type of mineral? What is it generally used for?
Diamonds - tools/jewelry
List 1 rock we use or see everyday and 1 mineral.
Answers will vary
Are pesticides good or bad for the soil, explain.
Pesticides can be good to help pests stay away but can have harmful chemicals that are bad for people.
What happens during erosion?
Erosion is the movement of rocks and pieces of rocks. It gets moved due to weather and it breaks it down into soil. It takes MANY MANY years.
How do rocks break down? Explain
How is a mineral formed?
It is created by nature and inorganic material.
How does soil use and need water?
It soaks up water for the plants.
Why do animals need soil? Give 2 reasons.
For homes/shelter
For food
What are the 5 layers of soil, starting at the top.
Humus
Topsoil
Subsoil
Parent material
Bedrock