Plants depend on water and light to grow. They depend on animals for pollination or to move their seeds around
What do plants need to grow?
100
The pattern of an object's motion is various situations can be observed and measured; when the past motion exhibits a regular pattern, future motion can be predicted from it.
What causes an object to move?
What is a pattern of movement?
100
Energy can be transferred from place to place by electrical currents, which can then be used locally to produce motion, sound, heat or light.
How can energy be transferred?
How can we use energy?
100
When two or more different substances are mixed, a new substance with different properties may be formed.
What is a chemical reaction?
Can new substances be formed from other substances?
200
Different kinds of matter exist and many of them can be either solid or liquid depending on the temperature. Matter can be described and classified by its observable properties.
How are materials similar and different from one another?
200
Reproduction is essential to the continued existence of every kind of organism. Plants and animals have unique and diversit life cycles.
What is a life cycle?
How do plants and animals reproduce?
200
Waves, which are regular patterns of motion, can be made by disturbing the surface. When waves move across the surface of deep water, the water goes up and down in place; there is no net motion in the direction of the wave except when they water meets the beach.
What are waves?
How do waves move?
200
The energy released from food was once energy from the sun that was captured by plants in the chemical process that forms plant matter from air and water.
What is photosynthesis?
Where does energy in food come from?
300
There are many different kinds of living things in any area and they exist in different places on land and in water.
What is a community?
300
Different organisms vary in how they look and function because they have different inherited information. The environment also affects the traits that an organism develops.
How do organisms change over time?
What happens to organisms when the environment changes?
300
Rainfall helps to shape the land and affects the types of living things found in the region.
What is erosion?
How does water, ice, wind and vegetation change the land?
How much water do plants need to grow?
300
Matter cycles between the air and soil and among plants, animals and microbes as these organisms live and die.
How does matter cycle through an ecosystem?
How does energy cycle through an ecosystem?
400
Wind and water can change the shape of the land.
What is erosion?
How can land change and what causes it to change?
400
Scientists record patterns of weather across different times and areas so that they can make predictions about what kind of weather may happen next.
What are weather patterns?
What is climate?
What is typical weather in various parts of the world?
What can we learn from weather patterns?
400
Energy and fuels that humans use, are derived from natural sources and their use affects the environment in multiple ways.
Where does energy come from?
What happens when resources are used?
400
Human activities in agriculture, industry, and everyday life have had major effects on land, vegetation, streams, oceans, and even outer space.