# What is a fair test GCSE?

## What is a fair test GCSE?

A fair test is one in which only the independent variable has been allowed to affect the dependent variable. e.g. A fair test can usually be achieved by keeping all other variables constant.

### Is homeostasis in Biology Paper 1?

Paper one covers topics 1-4: cell biology; organisation; infection and response and bioenergetics. Paper two covers topics 5-7: homeostasis and response; inheritance; variation and evolution; ecology and key ideas.

#### What is the control variable in reaction time experiment?

The dependent variable is the participants’ response time when it comes to catching a ruler that has been dropped. Measure how far the ruler falls before it is caught by the participants. The constants (control variables) are to be the weight of the ruler and the participants’ age.

What is a control variable GCSE?

Controlled variable – a variable that is kept the same during a scientific experiment. Any change in a controlled variable would invalidate the results.

What is a controlled variable in science example?

If a temperature is held constant during an experiment, it is controlled. Other examples of controlled variables could be an amount of light, using the same type of glassware, constant humidity, or duration of an experiment.

## What is homeostasis GCSE answer?

Homeostasis is the regulation of a constant internal environment. The conditions are maintained to ensure optimum conditions for metabolism and changes in response to both internal and external fluctuations.

### What is the best test for reaction time?

The most reliable method is to use extrapolation of the change in the average force that the finger exerts on the surface to estimate the reaction time.

#### Is time an independent or dependent variable?

independent variable
Correct answer: Time is a common independent variable, as it will not be affeced by any dependent environemental inputs. Time can be treated as a controllable constant against which changes in a system can be measured.

What is independent variable in this reaction?

An independent variable is defines as the variable that is changed or controlled in a scientific experiment. It represents the cause or reason for an outcome. Independent variables are the variables that the experimenter changes to test their dependent variable.

What are controlled variables in biology?

Definition. noun, plural: control variables. A variable that remains unchanged or held constant to prevent its effects on the outcome and therefore may verify the behavior of and the relationship between independent and dependent variables. Supplement.

## What is the hardest GCSE to take?

The hardest GCSE to pass is Double Science with 58.1 percent of students getting a four or lower in 2021. Just 1.5 percent of students received a nine in Double Science.

### Why is Biology GCSE so hard?

7. GCSE Biology. GCSE Biology makes an appearance on this list at number 7, as one of the hardest GCSEs you can take. High volume of content, and difficult concepts to understand are two of the reasons why so many students struggle.

#### What is the controlled assessment for GCSE science?

For AQA GCSE Science A, Additional Science, Biology, Chemistry, Physics and Further Additional Science, the controlled assessment takes the form of an Investigative Skills Assignment (ISA). For Science B, the controlled assessment (Using Practical and Investigative Skills) takes the form of a contextualised

What is the controlled assessment for Science B?

Physics and Further Additional Science, the controlled assessment takes the form of an Investigative Skills Assignment (ISA). For Science B, the controlled assessment (Using Practical and Investigative Skills) takes the form of a contextualised

What is the controlled assessment?

Physics and Further Additional Science, the controlled assessment takes the form of an Investigative Skills Assignment (ISA). For Science B, the controlled assessment (Using Practical and Investigative Skills) takes the form of a contextualised investigation based on a unit from the specification.

## What is GCSE scieces giace CTE assessmet?

GCSE SCIECES GIACE CTE ASSESSMET for certification from June 2014 onwards 5 Getting started For AQA GCSE Science A, Additional Science, Biology, Chemistry, Physics and Further Additional Science, the controlled assessment takes the form of an Investigative Skills Assignment (ISA).

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