Bio
Substance found in plant cells is needed for photosynthesis?
Chrophyll
name of the circuit component that Ms Lyd drew on the board
lamp
an element X has atomic number 17 with atomic mass 35.5. find the number of proton, electron and neutron.
Neutron = 18.5
A student determines the volume of a laboratory notebook. Which measuring instruments are used?
1. measuring cylinder and ruler
2. a clock
3. Measuring cylinder only
4. a ruler only
ruler only
function the organ that Ms Lyd's pointing out
pumping the blood to the entire body
As an electric car starts moving, the car motor transfers energy to the wheels. Which process is involved in this transfer of energy?
A work done by heating in the motor
B work done by the frictional force between the wheels and the road
C work done by the mechanical force from the motor
D work done by a decrease in gravitational potential energy
D work done by a decrease in gravitational potential energy
element in periodic table that has electrons configuration 2, 8, 2. mention the element and the group in the periodic table
Calcium in group 2
The reagent for testing lipid
ethanol and water
smallest molecule of protein, lipid and sugar
amino acid, fatty acid-glycerol, monosacharide (glucose)
the law of reflection
the angle of incidence is the same with angle of reflaction
1. C6H12O6
2. MgCl2
1. covalent
2. ionic
to separate oil with water we can use a technique?
titration/burette
location for ovum production and fertilization
ovary and oviduct or fallopian tube
Energy is transferred from the Sun to the Earth through the vacuum of space. Which method of energy transfer is involved?
Radiation
the product of the reaction is potassium nitrate and carbon dioxide and water. the reactant is? the type of reaction is?
potassium carbonate and nitric acid. carbonate reaction
to test carbon dioxide using?
lime water (calcium hydroxide). milky appearance
name is given to proteins that function as biological catalysts?
enzymes
Which speed–time graph represents the motion of an object that is moving with constant speed?
D
Butane is a hydrocarbon. What are the products of the complete combustion of butane?
carbon dioxide and water
Remember lab day when Ms. Lyd wanted to borrow you from GP, but Mr. Jon didn’t let you go — and you ended up finishing the experiment during Math class with Mr. Alfred, using almost a 1L beaker because the reaction was so slow. What was that lab?
Titration - Neutralization reaction