Ch 4
Young plants and animals get bigger. This is called ____
Growth
Pros of alloys
Strength
Durability
Corrosion resistant
What are parts of sound wave?
amplitude,frequency,crests and troughs, wavelength,pitch and frequency, volume and amplitude
What are fold mountains?
Fold mountain is a huge mountain range made when earth tectonic plates slowly clash into each other causing the land and rock layers to bend and crumple upwards
Are viruses living organisms?
No, but they can reproduce once they are in a living organism.
List 10 metals
Gold,silver,aluminum,magnesium,iron,potassium,sodium,lithium,calcium,beryllium
What is an echo?
an echo is a sound that bounces back at you after hitting a surface
What is a microorganism?
Microorganisms is a living organism that is so small you can only see it clearly by using a microscope
What is the scientific name of Llama?
Lama glama
Name all the process of separating mixtures
Filtration,distillation,evaporation,centrifugation
How deep is the oceanic crust and the continental crust?
oceanic- 30km
Continental- 70km
What are tides
tides are the rise and fall of the sea level which occurs during the day
What does dichotomous mean?
Divided into 2 parts
Name a food that contains acid
lemon🍋,orange🍊, lime
How deep is they mantle?
3000km deep
What is cytoplasm
jelly structure,chemical reaction happens here
What is the official name of covid 19?
SARS-CoV-2
a) what are alloys?
b) how are alloys made?
a) alloys are materials that are made up of 2 or more metals. This process changes the properties of the original metal making them lighter,stronger,and more corrosion resistant
b)alloys are made from a process called alloying.First the base metals are melted together in a furnace at high temperature.when they are melted,they are mixed thoroughly to ensure a equal distribution of elements.after mixing the alloy is cooled, forming a new material,with unique properties
What is a penuabral lunar eclipse?
it is when the moon passes through the earths penumbra , causing a subtle shading on the moon surface
Name the first 20 elements of the periodic table?
hydrogen, helium,lithium,beryllium,boron,carbon,nitrogen,oxygen,Florine,neon,sodium,magnesium,aluminium,silicon,phosphorus,sulfur,chlorine,argon,potassium,calcium