Plant transport
What is the main purpose of xylem in plants?
transports water and minerals from the roots to the leaves
Define what a neutralization reaction is.
a chemical reaction between an acid and base that produces a salt and water
Calculate the density of a substance with a mass of 50g and a volume of 20cm³.
2.5 g/cm3
Write the chemical formula for sodium chloride.
NaCl
Define what kinetic energy is.
movement energy
Name the process by which plants take in water through their roots.
osmosis
Give an example of a strong acid.
Hydrochloric, sulfuric or nitric acid
Define what speed is in relation to distance and time.
speed = distance/time
Write the chemical formula for magnesium oxide.
MgO
Give examples of renewable sources of energy.
wind power, solar power, bioenergy, hydroelectric and tidal energy
Explain how minerals are transported in plants.
with water through the xylem vessels
Explain the pH scale and its significance.
the pH scale shows how acidic or basic a substance is. The higher the number the more basic and the lower the number the more acidic the substance is
Explain the difference between mass and weight.
mass is measured in grams, weight is measured in newtons OR anything similar
What is the formula for sulfuric acid?
H2SO4
Describe the law of conservation of energy.
energy cannot be created or destroyed. It can be transferred or changed
What is the role of phloem in plant transport?
to transport food such as glucose, sucrose and amino acids up and down the plants
How does an acid differ from a base chemically?
An acid has an H+ ion. A base has an OH- ion.
How does friction affect the motion of objects?
it slows the object down
Explain the difference between an element and a compound.
an element has only 1 type of atoms. an element has more than 1 type of atom
Explain the difference between potential and kinetic energy.
potential energy is stored energy and kinetic energy is energy in motion used for movement
Describe the process of transpiration in plants.
transpiration is the loss of water from leaves by evaporation of water at the surfaces of the mesophyll cells followed by diffusion of water vapor through the stomata
What are the products for a reaction between calcium carbonate and sulfuric acid?
calcium nitrate, carbon dioxide and water
If you lift an object that has a weight of 100N up from the ground and put it on a table that is 1.0m above the ground.
How much work have you done against gravity?
100 J
What is the symbol equation for the reaction between calcium hydroxide and hydrochloric acid?
Ca(OH)2 + 2HCl --> CaCl2 + 2H2O
Sally is riding a rollercoaster. She rides from the top and stops at the bottom as the conductor pulls the brakes.
What energy changes have taken place from the top to the bottom?
gravitational potential to kinetic to thermal