Year 7 Science – Cells and Classification 1
Practise the characteristics of living things, classification ranks and keys, cell organelles and their jobs, and using a microscope. 20 questions. 25 minutes.
A cat's pupils get smaller when a bright torch shines in its eyes. Which characteristic of living things does this show?
Which of these is a living thing?
Circle 2 words in the sentence below.
Click the two living things in this list.
rockfrogcandlefernflame
Why do scientists classify living things?
Which list shows the Linnaean ranks in order from largest group to smallest group?
Humans have the scientific name below when written correctly (italic or underlined). Which is the correct way to write it?
Circle 1 word in the sentence below.
Click the genus name in the platypus's scientific name.
Ornithorhynchusanatinus
Which two animals share the most ranks in their classification?
| Animal | Kingdom | Phylum | Class | Order |
|---|---|---|---|---|
| P | Animalia | Chordata | Mammalia | Carnivora |
| Q | Animalia | Chordata | Mammalia | Rodentia |
| R | Animalia | Chordata | Aves | Passeriformes |
| S | Animalia | Arthropoda | Insecta | Diptera |
Use the key to identify the animal. A mystery animal has no backbone and four pairs of legs.
| Step | Feature | Result |
|---|---|---|
| 1a | Has a backbone | Go to 2 |
| 1b | No backbone | Go to 3 |
| 2a | Has feathers | Kookaburra |
| 2b | Has fur | Kangaroo |
| 3a | Has six legs | Ant |
| 3b | Has eight legs | Spider |
Which statement is part of cell theory?
Which structure is found in plant cells but not in animal cells?
Circle 2 words in the sentence below.
Click the two structures that are found in both plant cells and animal cells.
cell wallnucleuschloroplastcytoplasmlarge central vacuole
Choose the word that completes the blank.
The 1 contains DNA and controls the activities of the cell.
Blank 1: mitochondria · cell membrane · vacuole · nucleus
Choose the word that completes each blank.
The cell 1 controls what enters and leaves the cell. The 2 is the jelly-like part where chemical reactions happen.
Blank 1: wall · vacuole · membrane
Blank 2: nucleus · cytoplasm · chloroplast
A muscle cell needs a lot of energy. Which organelle would you expect to find many of in it?
What is the total magnification?
Choose the word that completes each blank.
When viewing a slide, always begin with the 1 power objective lens, and focus using the 2 focus knob first.
Blank 1: lowest · highest · middle
Blank 2: fine · coarse · diaphragm
Choose the words that complete each blank.
To make a wet mount, place a thin sample on a slide, add a drop of 1, then lower the coverslip 2 to avoid air bubbles.
Blank 1: water · oil · glue
Blank 2: flat and quickly · after the slide dries · at an angle
Choose the words that complete each blank.
In a scientific drawing, use a 1 to draw clear lines, and draw each label line with a 2.
Blank 1: marker · coloured crayon · pencil
Blank 2: ruler · freehand curve · felt tip
Choose the words that complete each blank.
Aboriginal and Torres Strait Islander Cultures classify plants and animals by their uses, forms and 1. This knowledge is passed on through 2 and practice.
Blank 1: sizes · functions · ages
Blank 2: textbooks · story · microscopes