Dynamic Earth
Impact on the Environment
Cells
Body Systems
Chemistry
100
What do we call the preserved remains of organisms and plants that lived long ago?
Fossils
100
What is it called when we take old materials and make them into something new
Recycling
100
What is the name of the three part idea that states
1) All living things are made of cells
2) All cells come from preexisting cells
3) The cell is the basic unit of life
The cell theory
100
This system sends blood throughout your body to deliver oxygen and nutrients to your cells
The circulatory system
100
Negatively charged part of an atom
Electron
200
Scientist Alfred Wegener came up with an idea that all the continents were once one supercontinent called....
Pangaea
200
What do we call resources that we will eventually run out of? (Example: fossil fuels)
Non-renewable resource
200
Nerve cells and muscle cells look different because...
The have different jobs
200
This system brings oxygen to our lungs and gets rid of carbon dioxide
The respiratory system
200
The atomic number of Chlorine...
17
300
What natural disaster can occur when two plates slide past each other at a transform boundary line?
Earthquakes
300
What is it called when we cut down trees for lumber and land use?
Deforestation
300
What are the tiny structures in a cell called?
Examples: (Nucleus, Mitochondria, Lysosomes)
Organelles
300
This system supports our bodies so we can stand and sit up
The skeletal system
300
A molecule consists of two or more ....
Atoms
400
What geographical feature can be made when two continental plates collide into each other at a convergent boundary?
Mountains
400
What is the layer of gas that protects us from the Sun's rays that is being destroyed from air pollution
The Ozone Layer
400
A cell that has a nucleus is called....
Eukaryotic
400
This system makes our bones and tissues move
The muscular system
400
Change of state when a gas turns into a liquid
Condensation
500
Which is the youngest layer of rock in the picture
Layer 3 because it cuts through all the others.
500
What do we call chemical, soil or other substances that are washed into a body of water by rain; this often leads to water pollution
Runoff
500
A group of cells that work together for a single purpose make a ....
Tissue
500
This system sends messages from the body to the brain and sends orders from the brain to our muscles.
The nervous system
500
Which state of matter can be compressed?
Gas