Biology
What organ pumps blood?
Heart
What are the three states of matter?
Solid, liquid, gas.
What force pulls objects toward the Earth?
Gravity
What is the largest object in our solar system?
The Sun
What tool is used to look at very tiny living things that cannot be seen with your eyes alone?
Microscope
What is the only mammal capable of true flight?
Bat
Water is made from what elements?
Hydrogen and Oxygen
Sound travels faster through air or through water?
Water
What causes day and night on Earth?
Earth's rotation
Which scientist proposed the three laws of motion and the law of universal gravitation? (And also sat under an apple tree)
Isaac Newton
During photosynthesis, plants use carbon dioxide and water to make glucose and release what gas?
Oxygen
A beaker contains 350 mL of water. You pour in another 275 mL. How much water is in the beaker now? Give your answer in Liters.
0.625 L
What force causes things to slow down when it is touching another object/surface?
Friction
The areas of seismic activity surrounding the Pacific plate is commonly known as what?
The Ring of Fire
This scientist developed the theory of relativity, which includes the famous equation E=mc2. Who is he?
Albert Einstein
A person has a resting heart rate of 72 beats per minute. About how many times does their heart beat in one hour?
72 × 60 = 4,320 beats
A solution contains 12 grams of salt dissolved in 300 mL of water. How many grams of salt are there per 100 mL?
12 ÷ 3 = 4 grams per 100 mL
A bicycle travels 54 miles in 3 hours. What is its average speed in mph?
54 ÷ 3 = 18 mph
Earth takes about 24 hours to rotate once. About how many hours does it take to rotate 7 times?
168 Hours
Which scientist is famous for proposing the theory of evolution by natural selection?
Charles Darwin
What organelle is primarily responsible for cellular respiration and the production of ATP in eukaryotic cells? (What is the powerhouse of the cell?)
Mitochondria
A sample has a mass of 180 g and a volume of 60 cm³. What is its density? Density = Mass ÷ Volume
180 ÷ 60 = 3 g/cm³
A 15 kg box is pushed with a force of 45 N. What is its acceleration?
(Use F=ma)
45 ÷ 15 = 3 m/s²
A spacecraft travels at 28,000 km/h. How far does it travel in 5 hours?
28,000 × 5 = 140,000 km
Which scientist won two Nobel Prizes in two different scientific fields: Physics and Chemistry?
Marie Curie