Scientific Method
The SI unit for length is ....
m (metre)
The structure is to maintain the shape of plant cell.
Cell wall
__________ is a group of cells that have similar structure and that function together as a unit.
A. Tissue
B. Cell
C. Organ
D. Organ system
A. Tissue
The process of gas becoming liquid is called ___________
condensation
The process of solid becoming gas is known as _________________
sublimation
Fossil can be found in _________________ rock
sedimentary
The sixth planet from the sun
Saturn
A glassware that used to measure a fixed volume of liquid to 1 decimal point.
Pipette
Which of the following cannot be found in animal cell?
A. Cell membrane
B. Nucleus
C. Chloroplast
D. Cytoplasm
C. Chloroplast
Name one specialised cell.
Sperm cell, ovum cell, nerve cell, ciliated cell, root hair cell
A wasp sting is alkali or acidic?
alkali
We can neutralise a bee sting by using vinegar.
True / False
False
The outermost layer of the earth.
Crust
A _______________ is a group of stars that appears to form a pattern
constellation
An idea that proposes a tentative explanation about a phenomenon or a narrow set of phenomena observed in the natural world.
Hypothesis
An organism that consumes other animal is called a __________
carnivore
One muscle of the pair contracts to move the body part, the other muscle in the pair relaxes. This is called _____________ movement.
antagonistic
Ag is the chemical symbol for _____________
silver
Al is the chemical symbol for ___________
Aluminium
_______________ rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors
Metamorphic
__________ rock is formed through the cooling and solidification of magma or lava.
Igneous
An ___________________ is defines as the variable that is changed or controlled in a scientific experiment
independent variable/manipulated variable
Which organelle in the plant cell enables the plant to start a food chain?
Chloroplast
The equation of photosynthesis:
__________ + ___________ --> __________ + _________
water, carbon dioxide
glucose, oxygen
State the colour of universal indicator when it is:
pH 1 pH 7 pH 14
Red, green, purple
What is the chemical symbol for iron?
Fe
The moment a thin sliver of the Moon becomes visible after New Moon is the beginning of the first intermediate phase is called _____________
Waxing crescent moon
The moon's gravitational field is so strong that it affects the Earth, most notably the water in the oceans. What is this phenomenon called?
Tide
What is the meaning of the term 'anomaly'?
a deviation from the common rule, type, arrangement, or form.
an odd, peculiar, or strange condition, situation, quality, etc.
A process applied with the aim of avoiding public health hazards arising from pathogenic micro-organisms associated with milk, by heat treatment which is consistent with minimal chemical, physical and organoleptic changes in the product.
Pasteurization
How do we know there's presence of starch in the leaf.
List 4 steps:
Step 1:
Step 2:
Step 3:
Step 4:
1. Boil the leaf in water
2. Boil the leaf in alcohol
3. Soak the leaf in warm water
4. Test with iodine solution
Sodium chloride salt can be produced through neutralisation process. State the reactants needed in this process.
__________ + ___________ --> sodium chloride + water
hydrochloric acid, sodium hydroxide
What is the element after oxygen in the periodic table?
5 seconds to answer
Flourine
The total energy of a light bulb can produce is 100 J. When the light bulb is turned on, 20% is converted to light energy. How much waste energy is produced?
Your answer must be in Joule.
80J
The principle of energy conservation states that energy is neither ________ nor _________. It may transform from one type to another.
created, destroyed