Biology
Earth Science
Everyday Sciences
Chemistry
Math
100

What is the largest organ in the human body?

Skin

100

What does ice float in water?

Ice is less dense

100

What does STEM stand for?

Science, Technology, Engineering, and Math

100

What is the charge of an electron?

-1 or negative 

100

3y+5-5=20-5

(x/5)+7=-3

x+y=?

y=5, x=50

55

200

What is the longest bone in the human body?

Femur/thighbone
200

What organism made oxygen first?

Cyanobacteria 

200

What makes soda bubbly?

Carbon Dioxide 

200

What two elements make up table salt?

NaCl- sodium and chlorine  

200

List 5 prime numbers

some examples:  2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

300

How many teeth do most adults have?

32

300

What are the 4 main components of air?

Nitrogen, oxygen, argon, and carbon dioxide (and water vapor)

300

What determines the color of the object we see?

The wavelengths of light that the object reflects

300

What element has the symbol Au?

gold

300

List at least 7 digits of pi

3.141592(65359...)

400

What are the stages of cell division (mitosis)? 

Prophase, prometaphase, metaphase, anaphase, and telophase

400

Where do earthquakes occur?

Along fault lines

400

Why does it take longer to cook something on top of a mountain? 

The atmospheric pressure decreases with altitude and the boiling point of a liquid is directly proportional to the atmospheric pressure. 

400

Type of chemical reaction where two or more reactants form one product.

Synthesis 

400

6 x (12÷4)+8-2=

24

500

What is the equation for photosynthesis?

 6CO2 + 6H2O+light → C6H12O6 + 6O2.

500

What is the earth shape?

Oblate spheroid

(if you say flat its -500 points)

500

The average human body contains __ times more bacterial cells than human cells

an estimated 10x more 

500

Have characteristic of both metals and nonmetals.

Metalloids 

500

If...

1+4=5

2+5=12

3+6=21

8+11=?

 40 or 96

Solution 1: Add the equation, then combine the sum to that of the previous equation

Instead of just adding, this second solution involves multiplying the second number of the equation by the number you are adding to it. ex: 2+ (2 x 5)=12

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