LAND-1
The portion of the soil that comes from decomposed things is called:
HUMUS
Plants grow better in "rich soil" meaning it contains much:
HUMUS
What 2 things are made in Photosynthesis?
Glucose & Oxygen
What 3 things does a plant need to make Photosynthesis?
Water, CO2, and Light
The process by which a seed grows into a plant is called:
GERMINATION
If soil has large pores in it, it probably contains:
large bits of rock
Suppose you put something in water and it sinks, what could you add to make it float?
Salt, and any solute that dissolves in water.
What is the function of a plant's stem
1. holds the leaves up
2. allows water to travel to the rest of the plant
In a seed, what are the cotyledons for?
Food for the embryo
Do all seeds have 2 cotyledons?
No, some have only one.
If you melt down an iceberg, will the water taste like the water in the ocean? Why or why not?
No; Iceberg is made of freshwater
TRUE or FALSE: Adding salt to ice will melt the ice, regardless of how cold it is.
FALSE
What do we call the "baby plant" when it is in the seed?
EMBRYO
What part of the plant's embryo develops into the plant's roots?
RADICLE
What must happen to the testa before germination can occur?
The testa must come off the seed.
When rock is melted and liquid rock freezes, it forms what kind of rock?
IGNEOUS
When small bits of rock come together and harden, the formed rock is called:
SEDIMENTARY ROCK
What part of the plant's embryo develops into the plants stem?
HYPOCOTYL
Where is the epicotyl in relation to the cotyledons?
above
What does the plumule become?
the plants first true leaves
When sedimentary or igneous rock is put under much heat and pressure it forms what kind of rock?
METAMORPHIC ROCK
When ice has been in the freezer a long time, is there any liquid water present?
Yes; there is always an equilibrium between water freezing and water melting.
What happens to the cotyledons once the plant is growing?
withers and dies off
A leaf that has one central vein with other smaller veins coming out from it is called:
Pinnate Leaf
A leaf that has several large veins branching from the petiole with smaller off of these is called:
Palmate Leaf
When you add a solute to a solvent, the freezing temperature is lower than normal. This is called:
Freezing Point Depression
When salt dissolves in water, it (slow down) or
(speeds up) the rate at which water freezes.
SLOWS DOWN
Why are there more stomata under the leaf than above?
Underneath stomata are shaded from the sun, allowing less water evaporation
The principle that plants tend to grow toward light is called:
Phototropism
The scientific principle in which plants turns according to gravity is called:
Gravitropism