Biology
Arteries, capillaries and veins
What are the three blood vessels?
Boiling happens at the boiling point but evaporation happens at all temperatures.
What is the difference between boiling and evaporation?
A force meter.
What do we use to measure forces?
A month
How long does it take the moon to orbit the Earth?
It is an investigation where you control all variables except for the independent variable.
What is a fair test?
It brings oxygen into the body and into the blood.
What is the function of the respiratory system?
There is bubbling, a color change or a change in temperature.
What are three ways to know if a chemical reaction happened?
In kilograms.
What is mass measured in?
The seventh planet from the sun.
What is Uranus?
Wear safety glasses.
How can you reduce risk?
Bacteria, viruses and fungi.
What are three types of pathogens?
Zero degrees Celsius.
What is the melting point of ice? What is the freezing point of water?
The components receive the same voltage so are the same brightness as a simple circuit.
What happens to the brightness of the bulbs in a parallel circuit?
The preserved remains of living things that lived more than 10,000 years ago.
What is a fossil?
Repeat the experiment and find the mean average.
How do you improve the accuracy?
Toxic substances are passed along the food chain from the prey to the predator until it reaches the apex predator.
Why are toxic substances found in apex predators?
In saltwater, it is the salt.
What is a solute?
The light changes direction at the glass, goes in a straight line through the glass and changes direction again when it leaves.
What happens to a ray of light when it is refracted?
Waxing gibbous
What is the name for a moon that is almost full?
In a food chain, it shows energy moving.
What do the arrows represent?
The sun
What is the energy source of a food web?
It is reversible.
How do you know if a change is a physical change?
It changes direction and energy.
What happens when you apply a force to an object?
One usually has layers while the other usually has distorted layers.
What is the difference between sedimentary rocks and metamorphic rocks?
Hips widen
What happens to girls during puberty but not boys?