Grade 7 Science and Technology study plan

Distinguish independent, dependent, and controlled variables in 10 written scenarios by labeling each variable type correctly.

Write one complete testable hypothesis for each of three sample questions and rewrite two non-testable questions into measurable form.

Design a controlled experiment on paper that includes a control group, at least three controlled variables, and a stated sample size, then justify each choice in two sentences.

Identify three sources of experimental error in a described procedure and state one concrete correction for each.

Convert raw measurement data into a labeled table and a line or bar graph with titled axes, units, and a caption.

Calculate mean, median, and range for two small data sets by hand and explain which measure best represents each set.

Evaluate two short descriptions of investigations and state whether each conclusion is supported by its data, citing the specific evidence.

Apply safety and ethics rules by listing the precautions needed for three given classroom investigations.

Classify 15 everyday materials as pure substances or mixtures and as elements or compounds, justifying each label.

Describe particle arrangement and motion for solids, liquids, and gases and use it to explain two observed behaviors such as diffusion and compression.

Explain the difference between physical and chemical changes using four examples and one piece of evidence for each chemical change.

Compare two materials on conductivity, hardness, and solubility, and recommend one for a stated use with reasons.

Draw and interpret force diagrams for five situations, labeling balanced versus unbalanced forces and predicting the resulting motion.

Calculate speed, distance, or time from the other two quantities in eight word problems, showing units at every step.

Explain how mass and weight differ and compute weight from mass using a stated gravitational field strength.

Trace energy transfers in three everyday devices and identify where energy is lost to the surroundings.

Label the main organelles on a hand-drawn cell diagram for a plant cell and an animal cell and state one function for each organelle.

Explain how cells, tissues, organs, and systems relate, using one body system as a worked example.

Describe the path of blood through the heart and lungs and state the function of each major organ in two other body systems.

List four health behaviors that protect body systems and connect each to a specific organ or system it supports.

Build a food web from a supplied organism list, identify producers, consumers, and decomposers, and predict the effect of removing one organism.

Distinguish the terms population, community, ecosystem, and biome with one example of each.

Explain three causes of biodiversity loss and one measurable action that reduces each cause.

Describe the water and rock cycles in sequence and label the energy source driving each stage of the water cycle.

Explain the cause of day and night and of the seasons, correcting two common misconceptions in writing.

Apply the engineering design cycle to a stated problem by writing a design brief with criteria, constraints, and two alternative solutions.

Build or sketch a prototype, record one test result against a measurable criterion, and describe one revision made because of that result.

Evaluate a technology's benefits and risks for society and the environment using a two-column trade-off table.

Explain one environmental impact of a common technology and propose a realistic mitigation.

Answer 40 mixed-domain practice questions under timed conditions and score at least 80 percent.

Re-teach the three weakest topics from the practice test by writing a short explanation and two original questions for each.

Complete two full-length timed practice sets and log every error by domain and error type.

Assemble a one-page formula-and-vocabulary sheet covering measurement, forces, energy, and cycles from memory first, then check it.