Biology
What's the function of cuticle in the leaf?
Stop water evaporating from the leaf
Hydrochloride acid + calcium carbonate → ?
Calcium chloride + water + carbon dioxide
Speed formula?
Distance ➗ Time
Why Mr. Alex is handsome?
Becuz IDK
Force's formula
Mass x Acceleration
Describe the digestion system in order?
Ingestion - Digestion - Absorbtion - Egestion
H2SO4 + CuO → ?
CuSO4 + H20
Name the method that used to measure the volume of an object has an irregular shape?
Displacement method
Weight of Mr. Alex?
105kg??? 🤨
What force is needed to give a car of mass 600kg an acceleration of 2.5m/s²?
1500 N
Formula of photosynthesis which have been balanced?
6CO2+6H20->C6H12O6+6O2
Atomic number, neutrons, electrons, protons in order of Br?
Atomic number: 35
Neutrons: 45
Electrons: 35
Protons: 35
Which of the following could not be a unit of acceleration? (km/s², mph/s, km/s, m/s²)
Km/s
How tall is Mr. Alex
1.9m 🥰🤪
Formula of force in work done if it have angles?
F = f x cos(angles)
The two upper chambers of the heart are called?
Atria
Name all elements of Noble gases?
helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
Which is energy stored? ( Forces, Heating, Thermal, Elastic potential, Kinetic )
Thermal, Elastic potential, Kinetic
...
A hiker has a mass of 80kg and is carrying a bag of mass 9.0kg. Gravitational field strength g is 10N/kg.
What is the combined weight of the hiker and her bag?
890 N
Name in order the layers of leaves from top to the bottom?
Upper epidermis - Palisade mesophyll - Spongy mesophyll - Lower epidermis
Why Chlorine has a mass is 35.5 rather than a whole number?
It have 2 isotopes.
Formula of velocity:
√[Kinetic energy÷(1/2xmass)]
Why do we need to study science ?????
Up to you!😱