physics
What is the force that pulls objects towards the center of the Earth?
Gravity
What is the chemical symbol for oxygen?
O
1. How do we call the process by which plants use sunlight, water, and carbon dioxide to create oxygen?
Photosynthesis
If all metals conduct electricity, and copper is a metal, does copper conduct electricity?
Yes, copper conducts electricity because it is a metal, and all metals conduct electricity.
What is the unit of measurement for force?
Newton(N)
Which element has the chemical symbol 'Na'?
Sodium
What is a Basic unit of life.
cell
If all plants need sunlight to grow, and mushrooms are not plants, do mushrooms need sunlight to grow?
What happens to an object when you apply force to it?
It moves or changes its motion.
What are the three subatomic particles of an atom?
Protons, neutrons, and electrons.
How do we call the red liquid that circulates in the arteries and veins of humans?
blood
If all mammals give birth to live young, and birds lay eggs, do birds give birth to live young?
No, birds do not give birth to live young; they lay eggs and their offspring hatch from the eggs
What is the difference between mass and weight
Mass is the amount of matter in an object, while weight is the force exerted on an object due to gravity.
What gas do we breathe out when we exhale?
Carbon dioxide (CO2)
How many bones can you find in the human body?
206
George Bush Intercontinental Airport in Texas has received numerous complaints from passengers who have been waiting too long for their luggage. What trick did they come up with to stop the complaints?
The path for passengers from the ramp to the baggage claim area has been increased. The time that people previously spent waiting for suitcases, they began to spend on the road.
Can you explain what happens when you mix vinegar and baking soda?
It creates a chemical reaction that produces carbon dioxide gas, causing the mixture to fizz and expand.
How many protons does an atom of hydrogen have?
1
Name 5 human organs.
liver, brain, lungs, heart, kidney, spleen, pancreas, thyroid and stomach.
“Always open, always closed” - this advertising slogan appeared in 1899 on the building of a New York restaurant. What was installed there for the first time?
Revolving door.