Scientists found evidence that this once existed on Mars
Water
The Earth's crust is broken into large pieces called...
Tectonic plates
What kind of rock forms when magma cools?
Igneous
The process of ice changing into liquid water is called...
Melting
The substances you start with in a reaction called?
Reactants
A group of the same species living in one area called?
A population
Organisms that make their own food are called...
Producers
The rover currently exploring Mars is called...
Perserverance
Where do most earthquakes occur near?
plate boundaries
Rocks formed from sediments are called what?
Sedimentary rock
The process of liquid water changing into gas is called...
Evaporation
The substances made in a reaction are called what?
Products
Food, water, and shelter are examples of what?
Resources
Most energy in an ecosystem comes from what?
The Sun
Scientists use evidence from rocks and landforms to learn about Mars's:
past
At a divergent boundary, what direction do plates move?
Apart/Away from each other
What are rocks called that are changed from heat and pressure?
Metamorphic rock
The process of gas changing into liquid is called...
Bubbles forming may be evidence of what?
A chemical reaction
If a population has plenty of food and water, it will usually...
Increase
Animals are examples of what?
Consumers
Rounded pebbles on Mars suggest this happened long ago
Water flowed across the surface
At a convergent boundary, what direction do plates move?
Toward one another
When thermal energy is added, how do particles move?
Faster
Matter cannot be created or destroyed. This idea is called what?
The Law of Conservation of Matter
Two organisms fighting over food are in...
Competition
A hawk eats a snake. The snake eats a mouse. The mouse eats grass. Which organism started the food chain?
The grass
Why are scientists interested in finding evidence of water on Mars?
Water is needed for life / It helps determine if life may have existed
What causes plates to move?
Convection currents in the mantle
A sedimentary rock buried deep underground will most likely become what?
Metamorphic rock
What happens to particles when water freezes?
They slow down and move closer together
A student mixes two clear liquids and a solid appears. What most likely happened?
A chemical reaction occurred
A drought causes plants to die. What will likely happen to the rabbit population?
It will decrease
A farmer removes all of the grass from a field.
Predict what will happen to the rabbit and hawk populations over time and explain why.
Rabbit populations would decrease because they lose their food source. Hawk populations would eventually decrease because there would be fewer rabbits to eat.