Questão 1
Questão
What seperation method does this diagram represent?
Responda
-
Decantation
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Evaporation
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Filtering
Questão 2
Questão
What seperation method does this diagram represent?
Responda
-
Decanting
-
Filtering
-
Evaporation
Questão 3
Questão
What does this diagram show?
Questão 4
Questão
What does this image show?
Questão 5
Questão
Name the equipment and the seperation method.
Equipment names: filter funnel, filter paper, conical flask, filtrate,
Responda
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filter funnel
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filter paper
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conical flask
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filtrate
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filtering
Questão 6
Questão
Hydrochloric acid + lithium hydroxide = lithium chlorate + water.
Hint: look at the spelling carefully!
Questão 7
Questão
Sulphuric acid + potassium hydroxide = potassium sulphate + water.
Questão 8
Questão
Nitric acid + sodium hydroxide = nitric sodiumoxide + water.
Questão 9
Questão
Nitric acid + beryllium hydroxide = beryllium chloride + water.
Questão 10
Questão
What are possible pH values for acidic substances?
Questão 11
Questão
What are possible pH values for neutral substances?
Questão 12
Questão
What are the possible pH values for basic (alkali) substances?
Questão 13
Questão
Foods webs/chains have to start with a...
[More than one right answer!]
Responda
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carnivore
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herbivore
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plant
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producer
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hexiducer
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animal
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Dante
Questão 14
Questão
Ways that marine [blank_start]ecosystems[blank_end] are affected by chemical spills:
- Habitats of [blank_start]organisms[blank_end] are destroyed, so they have no [blank_start]shelter[blank_end] and die.
- [blank_start]Oil[blank_end] or similar pollutants coats the animal, so it can no longer catch [blank_start]pray[blank_end]. As a result, it will [blank_start]starve[blank_end] and die.
- The food source of predators is [blank_start]reduced[blank_end], which [blank_start]affects[blank_end] all the organisms in the web.
Responda
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fishes
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animals
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ecosystem
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people
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organisms
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neturalists
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habitats
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shelter
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homes
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Oil
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Corn syrup
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Acidic water
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prey
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Sam
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kelp
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commit suicide
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starve
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eat its nipples
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reduced
-
unchanged
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increased
-
effects
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affects
-
infects
Questão 15
Questão
When comparing filtering, evaporating, and decanting, which seperation methods could be described by each statement?
a. Seperates an insoluble solid from a liquid. [blank_start]Filtering & Decanting[blank_end]
b. Seperates a soluble solid from a liquid. [blank_start]Evaporating[blank_end]
c. Uses different densities to seperate. [blank_start]Decanting[blank_end]
d. Uses differing boiling points to seperate. [blank_start]Evaporating[blank_end]
e. Uses different particle sizes to seperate. [blank_start]Filtering[blank_end]
f. Can be used to seperate two different liquids. [blank_start]Decanting & Evaporating[blank_end]
g. Both substances are collected when seperated. [blank_start]Decanting & Filtering[blank_end]
Responda
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Evaporating
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Filtering
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Decanting
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Filtering
-
Decanting
-
Evaporating
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Decanting
-
Evaporating
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Filtering
-
Decanting
-
Filtering
-
Evaporating
-
Filtering & Decanting
-
Filtering & Evaporation
-
Evaporation & Decanting
-
Evaporating & Filtering
-
Evaporating & Decanting
-
Decanting & Filtering
-
Evaporating & Filtering
-
Evaporating & Decanting
-
Filtering & Decanting
Questão 16
Questão
Neutralisation is when an acid reacts with just enough [blank_start]base[blank_end] to form a [blank_start]solution[blank_end] with a [blank_start]pH value[blank_end] of exactly 7.
Questão 17
Questão
A mixture of sand and salt needs to be separated into individual piles. Put these steps in the appropriate order:
1. [blank_start]Add water[blank_end]
2. [blank_start]Decant the mixture[blank_end]
3. [blank_start]Filter the mixture[blank_end]
4. [blank_start]Heat the mixture over a Bunsen Burner[blank_end]
Questão 18
Questão
Biodiversity is the [blank_start]measure[blank_end] of the [blank_start]varirety[blank_end] of all different [blank_start]species[blank_end].
Questão 19
Questão
Label the parts of the flower.
Words: style, stigma, ovary, anther, ovule, filament, sepal, petal.
[Note: the ovule is the dot ON the ovule. The ovary is the dot in the ovary-area, but not on the ovules. To clear any confusion with the labels.]
Responda
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stigma
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anther
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filament
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petal
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sepal
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ovule
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style
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ovary
Questão 20
Questão
Complete the equation showing neutralisation:
Acid + base > [blank_start]salt[blank_end] + [blank_start]water[blank_end]
Questão 21
Questão
Write an equation for calcium sulfate.
[blank_start]Sulfuric acid + calcium hydroxide[blank_end]
Responda
-
Sulfuric acid + calcium hydroxide
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Calciumic acid + sulfur hydroxide
-
Sulfuric calcium + acidic hydroxide
Questão 22
Questão
Make an equation for iron chloride.
[blank_start]Hydrochloric acid + iron hydroxide[blank_end]
Responda
-
Hydrochloride acid + iron hydroxide
-
Hydrochloric acid + iron hydroxide
-
Hydrochlorate acid + iron hydroxide
Questão 23
Questão
Make an equation for magnesium nitrate.
[blank_start]Nitric acid + magnesium hydroxide[blank_end]
Responda
-
Nitride acid + magnesium hydroxide
-
Nitrate acid + magnesium hydroxide
-
Nitric acid + magnesium hydroxide
Questão 24
Questão
A food web is many food [blank_start]chains[blank_end] joined together.
Arrows on a food web show the [blank_start]flow[blank_end] of energy from one [blank_start]organism[blank_end] to the next.
All food chains start with [blank_start]producers[blank_end].
Words: organism, flow, producers, chains.
Responda
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organism
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flow
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chains
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producers