Year 7 Properties of Substances Test Checklist

Which of the following is the correct 'If... then... because...' format for writing a hypothesis?

• If plants receive more sunlight, then they will grow taller because sunlight provides energy for growth.

• If plants grow, then they receive sunlight because they need energy.

• If sunlight is given, then plants grow because they are green.

• If plants are tall, then they get more sunlight because they are outside.

Which of the following best describes independent variables, dependent variables, and control variables in an experiment?

• Independent variables are changed, dependent variables are measured, and control variables are kept constant.

• Independent variables are measured, dependent variables are changed, and control variables are ignored.

• Independent variables are kept constant, dependent variables are changed, and control variables are measured.

• Independent variables are ignored, dependent variables are kept constant, and control variables are changed.

Construct appropriate line graphs based on data tables using correct graphing technique (SALTY).

• Use the SALTY method to create line graphs from data tables.

• Draw bar graphs for all data tables using any method.

• Ignore the SALTY technique when graphing data tables.

• Use pie charts instead of line graphs for data tables.

Classify the ability to rust as a chemical or physical property.

• Chemical property

• Physical property

• Density property

• Mechanical property

Which of the following lists the different physical properties of solids, liquids, and gases?

• Shape, volume, and compressibility

• Color, taste, and smell

• Weight, density, and temperature

• Size, mass, and area

Which of the following lists correctly identifies examples of solids, liquids, and gases?

• Ice, water, oxygen

• Water, ice, steam

• Oxygen, water, rock

• Steam, ice, oil

The different methods by which matter can change states (solid -> liquid -> gas and gas -> liquid -> solid) are called:

• Melting, freezing, condensation, evaporation, sublimation, and deposition

• Photosynthesis, respiration, combustion, and fermentation

• Diffusion, osmosis, filtration, and absorption

• Reflection, refraction, diffraction, and interference

The particle model of matter can be explained using which of the following diagrams?

• A diagram showing particles arranged closely together and moving randomly

• A diagram showing a single large block with no spaces

• A diagram with only empty space and no particles

• A diagram showing particles fixed in one position with no movement

The arrangement of particles in a solid, liquid, and gas is best described as:

• Closely packed in solids, less closely packed in liquids, and far apart in gases.

• Far apart in solids, closely packed in liquids, and less closely packed in gases.

• Randomly arranged in solids, fixed in liquids, and closely packed in gases.

• All states have particles equally spaced.

At a particle level, what happens when matter changes states (solid -> liquid -> gas and gas -> liquid -> solid)?

• Particles move faster and spread apart when heated, and move slower and come closer together when cooled.

• Particles change their size and shape during state changes.

• Particles disappear and reappear in different states.

• Particles gain or lose mass during state changes.