Properties of Matter
What state of matter has tightly packed particles and keeps its shape?
Solid
What do mixtures combine?
Different types of matter
What happens to light in reflection?
It bounces off surfaces
What landform is created by wind moving sand?
Sand dunes
What do cactus spines help prevent?
Water loss and damage
What is a biotic factor?
A living organism
What is a solution made of?
Solute and solvent
How long does one Earth rotation take?
24 hours
What state of matter has a definite volume but takes the shape of its container?
Liquid
Why is a mixture a physical change?
No new substance forms
Why does a straw look bent in water?
Light bends in water
What does a moraine show?
Past glacier movement
Why do rainforest plants have large leaves?
To catch more sunlight
Which is an abiotic factor in a pond?
Water
What kind of mixture is saltwater?
A solution
Why do we have night?
Sunlight doesn’t reach it
Which state of matter has particles that are spread far apart and has no definite shape or volume?
Gas
Why can parts of a fruit salad be separated?
Each part stays itself
What happens during light absorption?
Light is taken in
What landform forms from glacier scraping?
U-shaped valley
What adaptation helps hummingbirds drink nectar?
Tube-shaped beak
How do plants and sunlight interact?
Plants use sunlight
What happens when lemon juice mixes with water?
It spreads out evenly
Where does the Sun rise?
In the east
If two objects are the same size, but one sinks and the other floats, what is different about them?
Their density
What method best separates marbles from rice and gravel?
Use your hands
Why can’t light bend through a curved tube?
It travels straight only
Where does a river drop sediment and form new land?
In a delta
Penguins’ blubber helps them survive in what environment?
Cold and icy
Why do animals need water?
To stay hydrated
What is the solute in saltwater?
Salt
When are shadows the longest?
Morning or evening