Topic Summaries
Presenting data
Transport Systems
Blood and heart disease
Stem cells, microscopy, and microorganisms
Transport in cells
Human health and enzymes
Plant transport systems
Pathogens and non-specific immunity
The immune system and drugs
Plant disease and monoclonal antibodies
Photosynthesis and respiration
The nervous system and homeostasis
The brain and the eye
Hormone regulation and waste excretion
Reproductive hormones and plant hormones
Cell division, reproduction, and DNA structure
DNA synthesis and inheritance
Genetic engineering and modification
Evolution and natural selection
Species and classification
Resource cycles and environmental change
Biodiversity and environmental management
Biomass and trophic levels
Food supply and biotechnology
Science skills: Experimental procedures
Science skills: Presenting and using data
Science skills: Measuring results
Transport Systems
Blood and heart disease
Stem cells, microscopy, and microorganisms
Transport in cells
Human health and enzymes
Plant transport systems
Pathogens and non-specific immunity
The immune system and drugs
Plant disease and monoclonal antibodies
Photosynthesis and respiration
The nervous system and homeostasis
The brain and the eye
Hormone regulation and waste excretion
Reproductive hormones and plant hormones
Cell division, reproduction, and DNA structure
DNA synthesis and inheritance
Genetic engineering and modification
Evolution and natural selection
Species and classification
Resource cycles and environmental change
Biodiversity and environmental management
Biomass and trophic levels
Food supply and biotechnology
Science skills: Experimental procedures
Science skills: Presenting and using data
Science skills: Measuring results
- Frequency tables are used to record results from experiments. The first column should be the independent variable, and headers should include units
| Example frequency table | |||||
| Independent variable, x (s) | Measured variable, y (m) | Calculated dependent variable, y² (m²) | |||
| 1 | 2 | 3 | Mean | ||
| 1 | 1.2 | 1.4 | 1.3 | 1.3 | 1.7 |
| 2 | 2.8 | 2.6 | 3 | 2.8 | 7.8 |
| 3 | 3.7 | 3.2 | 3.8 | 3.6 | 12.7 |
- Bar charts are used to compare categoric variables to continuous variables.
- Histograms show how a set of continuous data fits into grouped categories.
- The height of each bar represents the frequency density.
- The area of each bar is proportional to the number of data values in the group.
- The bars should all be touching.
- Line graphs compare two continuous variables.
- Recorded data is plotted onto a graph. The x and y coordinates of each point correspond to a value for the independent and dependent variable, respectively.
- A smooth curve is drawn to show the general relationship. This should be close to as many points as possible, excluding outliers.
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