§ Year 10 · Science · Australian Curriculum
Year 10 Science.
The dress rehearsal for senior science.
Year 10 Science is the year that decides who is doing what in Year 11. Genetics, evolution, Newton's laws, the periodic table, the Big Bang. By Term 3 your child is being asked to commit to Chemistry, Physics or Biology — and those choices have consequences that run for two years. We tutor Year 10 Science with one eye on the senior syllabus, because that is what Year 10 is actually preparing for.
100% online·Sessions on Google Meet, anywhere in Queensland
§ What Year 10 covers
The syllabus, in plain English.
Year 10 Science follows the Australian Curriculum v9 (with the QLD overlay) and is the final year of junior science. The content moves much closer to the senior subjects: genetics with Mendelian inheritance, evolution by natural selection, Newton's laws of motion, the periodic table with predictable reaction patterns, and the Big Bang as a model for the origin of the universe. Science Inquiry Skills now expect students to design and evaluate investigations independently and to write extended discussions that integrate scientific theory with experimental results.
Biological Sciences
- DNA, genes and chromosomes — structure and function
- Mitosis and meiosis — purposes and key differences
- Mendelian inheritance — Punnett squares, dominant and recessive alleles, sex-linked traits
- Evolution by natural selection and the evidence supporting it (fossil record, comparative anatomy, DNA)
Chemical Sciences
- Patterns and trends in the periodic table (group and period trends)
- Predicting products of reactions based on reactant type
- Balanced chemical equations including states
- Factors affecting reaction rate (temperature, concentration, surface area, catalysts)
Physical Sciences
- Newton's three laws of motion
- Calculating force, mass and acceleration; F = ma
- Distance-time and velocity-time graphs
- Energy transfer in collisions and momentum (introduction)
Earth and Space Sciences
- The Big Bang theory and the origin and evolution of the universe
- Evidence for the Big Bang (cosmic microwave background, redshift, abundance of light elements)
- The life cycle of stars and the formation of elements
Science Inquiry Skills
- Designing extended investigations with valid controls and replicates
- Identifying systematic versus random errors
- Writing extended discussions that integrate theory and evidence
- Critically evaluating claims based on the quality of evidence
§ Where Year 10s get stuck
Common pitfalls — and how to dodge them.
Punnett squares done backwards
In a Punnett square, the rows are one parent's alleles and the columns are the other's. Each cell is the genotype of one possible offspring. Year 10s sometimes write the offspring genotypes outside the grid, or list the parents' genotypes in the cells. The discipline: always write parent 1 across the top, parent 2 down the side, and combine them inside. Then count offspring genotypes from the cells.
Treating evolution as something an individual organism does
Individual organisms do not evolve. Populations evolve. A single giraffe does not "grow a longer neck because it needs one" — but over many generations, giraffes with slightly longer necks survive better, reproduce more, and the average neck length in the population increases. Year 10 examiners specifically mark down language that implies individual evolution.
Confusing speed, velocity and acceleration
Speed = how fast (no direction). Velocity = how fast AND in what direction. Acceleration = the rate at which velocity changes (it can be a change in speed OR a change in direction, or both). A car going around a corner at constant 60 km/h IS accelerating, because the direction is changing. Year 10 questions specifically test this distinction.
Misusing Newton's third law
Newton's third law: for every action there is an equal and opposite reaction. The two forces act on different objects. When you push a wall, the wall pushes back on you — those are the action-reaction pair. The force of the floor on your feet is a different force on a different object. Year 10s often pair forces that act on the same object and lose marks across every Newton's-laws question.
Writing balanced equations without checking the atoms on each side
Year 10 students writing 2H₂ + O₂ → 2H₂O is correct. Writing H₂ + O₂ → H₂O is not — there is one O on the right but two on the left. The fix: after writing any equation, count the atoms of each element on both sides. If they do not match, balance.
§ Worked examples
A question. A walkthrough. The marks.
Example 1
A Punnett square for an incomplete-dominance trait
The question
In snapdragons, the gene for flower colour shows incomplete dominance. A red allele (R) crossed with a white allele (W) produces pink flowers (RW). Two pink-flowered snapdragons (RW × RW) are crossed. Determine the genotype and phenotype ratios of the offspring.
Walkthrough
Step 1 — Set up the Punnett square with parent 1 (RW) across the top and parent 2 (RW) down the side. Step 2 — Combine each row/column intersection: RR, RW, RW, WW. Step 3 — Genotype ratio: 1 RR : 2 RW : 1 WW. Step 4 — Translate genotypes to phenotypes using the incomplete-dominance rule: RR = red, RW = pink, WW = white. Step 5 — Phenotype ratio: 1 red : 2 pink : 1 white. Answer: The offspring will be in the ratio 1 red : 2 pink : 1 white (or 25% red, 50% pink, 25% white). Mark allocation typically gives 1 mark for the correct Punnett square, 1 for the genotype ratio, 1 for the phenotype ratio. Common error: students treat the cross like a standard dominant/recessive question and write 3 red : 1 white. The "incomplete dominance" hint in the question is doing real work.
Example 2
A Newton's second law calculation with units
The question
A trolley of mass 4.0 kg is pushed with a constant force of 12 N along a smooth horizontal surface. (a) Calculate the acceleration of the trolley. (b) State the SI unit and explain why this is consistent with F = ma.
Walkthrough
(a) Apply F = ma, rearranged for acceleration: a = F/m. Substitute: a = 12 N ÷ 4.0 kg = 3.0 m/s². Answer: the trolley accelerates at 3.0 m/s². (b) The SI unit of acceleration is metres per second squared (m/s²). This is consistent with F = ma because 1 newton is defined as the force required to accelerate a 1 kg mass at 1 m/s², which gives the unit relationship: 1 N = 1 kg × 1 m/s². So when N is divided by kg, the resulting unit is m/s². Mark allocation: 2 marks for the calculation in (a) — 1 for the rearrangement, 1 for the correct numerical answer with units — and 2 marks for (b), 1 for stating the unit and 1 for the explanation of why it works dimensionally. The most common error: writing the answer as "3 m/s" without the squared, which loses the unit mark.
§ Why Pythora for Year 10 Science
Not generic tutoring. Specifically this.
Tutors who recently sat senior Chemistry, Physics or Biology
Every Pythora Science tutor finished at least one senior science with 95+ — many did two or three. They know exactly which Year 10 topics — Newton's laws, genetics, the periodic table — are the ones the senior subjects will assume on day one. They teach Year 10 with that endpoint in mind.
Honest pathway advice for senior science choices
By mid-Year 10 your child has to choose between Chemistry, Physics, Biology and Psychology (and decide whether to take more than one). We give you an honest read of where your child sits and which combinations are realistic. Doing three sciences plus Methods is fine for some students and a recipe for burnout for others. We don't push subjects students shouldn't be in.
IA-style assessment scaffolding
The extended student experiment in Year 10 is often structured the same way as the Year 11 IA2 — rationale, methodology, results, evaluation. We coach to that structure from session one, so when your child arrives in Year 11 the lab report format is already automatic.
A written recap after every session
You see exactly what was covered, where your child struggled, what was set as homework, and what the next session will focus on. In your inbox, inside six minutes of the lesson ending.
§ Real student
“I was going to drop science in Year 11 because I thought I was bad at it. Two terms with Pythora and I'm now top of my class. Doing Chem and Bio next year.”
§ Where this fits
One step on the path.
Year 10 is the rehearsal year for senior science. Year 11 Chemistry assumes you know the periodic table and can balance equations. Year 11 Physics assumes you have Newton's laws cold. Year 11 Biology assumes you understand DNA and natural selection. Gaps left in Year 10 become Term 1 of Year 11 disasters. We close them now.
Builds from
Year 9 ScienceLeads to
Year 11 Chemistry§ Questions
Frequently asked.
My child is deciding between Chemistry, Physics and Biology for Year 11. How do we choose?
Look at their Year 10 performance in each strand of science — most schools mark these separately. A student who consistently does well in the chemistry topics will usually do well in senior Chemistry. Same for Physics (the maths-heavy strand) and Biology (the memorisation-heavy strand). Universities for medicine, engineering or science want different combinations — we can walk you through what specific pathways need. We tell you honestly which sciences your child is ready for and which would be a stretch.
Can my child do senior Physics without Mathematical Methods?
Technically yes, practically no. Year 11 and 12 Physics involves a lot of algebraic rearrangement, trigonometry, and (in Year 12) some calculus. Students doing General Maths instead of Methods struggle significantly with the maths side of senior Physics — and lose marks they wouldn't have lost with the algebra fluency Methods builds. If Physics is the priority, Methods is effectively required.
How many sessions a week for Year 10 Science?
One 60-minute session per week is the standard. Two sessions a week works in the lead-up to a major assessment or for students catching up on multiple sciences before committing to a senior pathway.
How much does Year 10 Science tutoring cost?
Year 10 Science is $75 per hour as a Junior subject. Billed weekly for completed sessions, no lock-in. Every new family gets a free trial session with their matched tutor first.
Year 10 Science.
Done properly.
One short form. We’ll match you with a tutor and call within 24 hours.
From $75/hour · Billed weekly · Pause or cancel anytime