Structure and Properties of Matter
What is matter?
Anything that has mass and takes up space.
What do all animals need to survive?
Food, water, air, and shelter.
What force pulls objects toward each other?
What happens when water evaporates and forms clouds?
Condensation.
What direction does the Sun rise and set?
Rises in the east and sets in the west.
What happens to the weight of water when ice melts?
It stays the same.
What can plants do that animals can’t?
Make their own food through photosynthesis.
What causes day and night on Earth?
How do we measure water volume?
In liters or cubic meters.
What happens to your shadow when the Sun is high in the sky?
It gets shorter.
What is a chemical change?
A change creating a new substance with different properties.
Why is sunlight important for plants?
They use it to make food.
When does the Sun rise, and where?
In the east.
Where is freshwater found?
Rivers, lakes, glaciers, aquifers.
What are decomposers?
Organisms that break down dead plants and animals into nutrients.
What’s an example of a physical change?
Melting ice into water.
Name a decomposer.
Fungi, bacteria, worms
Name one of Earth’s four systems.
Geosphere, hydrosphere, biosphere, atmosphere.
Name one ecosystem and an animal that lives there.
Desert—lizards, Forest—deer
Name an example of a chemical change.
Rust on iron, smoke and ash from a fire
How can you tell a mixture from a new substance?
A mixture keeps properties; a new substance has different properties from a chemical change.
What is the original energy source for living things?
The Sun
What natural event shows gravity in action?
A waterfall or rain falling.
How does the water cycle move water through different stages?
Water evaporates, condenses into clouds, precipitates as rain or snow, and collects in bodies of water
Name and example of a mixture.
Salad or trail mix