science Flashcards
Does pressure decrease with depth true or false ?
false
A force that is applied to a liquid is transmitted to all parts of the liquid TRUE OR FALSE??
True
When a metal reacts with water it produces a …
Hydroxide
when something reacts with oxygen it produces an
…
oxide
What has been added to car exhausts to help remove harmful gases?
catalyic converters
Which type of oxides are usually formed when metals react with oxygen?
“basic” or “basic oxides”
Magnesium oxide reacts with a particular acid to give the salt magnesium nitrate. Which acid must have been used?
nitric
Carbon is a non-metal. Non-metal oxides are
acidic
sulfur + oxygen →
sulfur dioxide
Name the organ where oestrogen is made?
Ovary/ovaries
Sperm cells are an example of _____ that pass on genes
Gametes
Aerobic excersise and anaerobic excersise has what diffrence
Aerobic excersise involves movement that is fueled by oxygen and Anaerobic includes movement that require short bursts of energy.
Hemostatis define
The process of replacing blood
What makes up most of our blood?
Plasma
What percent of our blood is plasma?
55%
Platelets help with
injuries and clot blood from bleeding further from a cut
WHITE BLOOD CELLS HELP WITH
FIGHTING VIRUS AND ENGULFING THE PATHOGEN
Why does removing the intial spark or flame of a reaction not stop the reaction?
Because heat provided by the reaction can potentially cause unburnt fuel to burn.
Whats in the fire triangle?
Oxygen,Heat,fuel
Why does water not help with burning oil ?
It goes through the oil turning into steam and moving the oil ou t of the way making the fire spread out.
What helps stop electrical fire?
Turning the power of the mains and using carbon dioxide gas extinguisher .
Phases of the moon
New Moon
Waxing Crescent
First Quarter
Waxing Gibbous
Full Moon
Waning Gibbous
Third Quarter
Waning Crescent
what is gravitational field strength
Gravitational field strength refers to the force exerted on an object due to gravity at a particular location.
