The air
How can changes in an environment affect the
What are plants
How are fossils & energy related
Ch.1.less.1. what are the structures of plant and animals cells
How do objects move
Why does it seems that the sun move
What can we learn about the moon
How do plants survive in the environment
The solar system
How does electricity affects our life
How do seed plants grow & reproduce
How is water recycled
How do fronts & air masses change the
How do an organism’s trait help it survive
Why are there so many kinds of rocks
Less.2.how are living things similar and different
How can a simple machine reduce force
