science
photosynthesis
is the process where plant use sunlight to make energy
equation for photosynthesis
water 💧 + carbon dioxide + light ✨️ + leaf 🍃 + glucose + oxygen.
what happens to iodine when starch is present
idone turns from yellow 💛/brown 🤎 to blue 💙/ black 🖤.
respiration
respiration os the breakdown of food to release energy
equation of respiration
Glucose + oxygen ➡️ carbon dioxide + water.
Food chain
an eco system is when organisms that live together dependent on each other and there environments.
food webs
food web shows how a number of food chains are interlinked with in an ecosystem.
gases ⛽️ that enters and leave a leaf 🍃
oxygen( leaves the leaf)
carbon dioxide (comes into the leaf).
starch
starch is stored in a leaf and transported to every part of the plant 🪴.
stomata function
the bottom of the leaf that has air holes is called stomata.
solar system
my - Mercury
very - Venus
easy - Earth
method - Mars
just - Jupiter
speeds - Saturn
up - Uranus
naming planet - Neptune.
leap year
every 4years February has 29 days and the years has 366 days this is a leap year
Dwarf planet
eris
ceres
makamake
haumea
pluto
how many times does the earth rotate on the axis
365 days
sound definition
sound is a dorm of energy that travel as a wave.
sound wave 🔉
sound wave are classed a s longitudinal waves.whixh means the vibration moves backwards and forwards.
what the speed that sound travel off
sound travels at a speed of 330 metres per second in air.
can you see sound
With an oscilloscope.
Gravity
a force that keep the earth orbit round the sun 🌞 ☀️ 🌤 🌅.
what the axis of earth
it's 23.5° Angle
lunar months
one complete orbit of the moon takes 28 days this isbthe lunar month.
lunar eclipse
when the Moon moves into the Earth's shadow, causing the Moon to be darkened.