Life
Nature
Physical
Earth
Space
100

What is smallest unit of life?

Cell

100

What are some examples of Nature?

Trees, Animals, Leaves, Rivers, etc.

100

What is the conservation of Energy?

Energy cannot be created nor destroyed. Only converted into different energy's. 

100

What is earth considered?

A planet

100

What's the third plant from the sun?

Earth

200

What is it called when all the organs in your body work together?

It's called the organ system

200

What is the green stuff on earth's Surface called?

Grass
200

What is Physical science?

Physical science is the study of non-living organisms

200

Which is the largest ocean on Earth?

Pacific Ocean

200

What galaxy are we a part of?

The milky Way Galaxy

300

What is an example of life?

Plants, animals

300

What causes the Earthquakes?

A shift in the tectonic plates

300

What steps do scientist follow when doing a experiment? 

The scientific Method 

300

What is the center of Earth called?

The inner or Outer Core

300

What is the name of the force that keeps our planets in orbit?

Gravity

400

How do our cells communicate with each other? 

Chemical signals

400
How are our Volcano's made?

Convergent plate boundaries

400

What are 5 examples of Physical Science?

Chemistry, Geology, Engineering Science, geography, and Physics 

400
What is the tallest tree on Earth?

Hyperion is a coast redwood (Sequoia sempervirens) in California that is the world's tallest known living tree, measuring 115.92 m (380.3 ft)

400

What color is the coldest star?

Red

500

What are the main threats to life?

tobacco use, physical inactivity, the harmful use of alcohol, unhealthy diets and air pollution

500

What major extinction killed the dinosaurs?  

Cretaceous-tertiary Extinction: 65 million Years Ago

500

How many senses do humans have?

10 to 12 science has discovered

500

What is the greenhouse effect?

The greenhouse effect is the process through which heat is trapped near Earth's surface by substances known as 'greenhouse gases.'

500
Does our universe have a end?

The answer is undetermined for right now. Our universe is always expanded