What is Science?Year 7

How many Sciences can you name?

Quickly jot down as many as

you can

How many Sciences can you name?

Commonly known ones:• Biology• Chemistry• Physics• Geology• Forensics• Psychology

What are the skills needed to be a scientist?

List at least 10 of them

What are the skills needed to be a scientist?

Did you get all of these?APPLY INFER OBSERVE

MEASUREHYPOTHESISE

ANALYSE PREDICT TESTCONCLUDE INTERPRET

EVALUATE GRAPH CLASSIFYEXPERIMENT FIND LINKS

Why do they need those skills?

For 2 of your words Explain why a scientist needs that skill

e.G Observant – Scientists need to observe because then they can see

any changes that happen in an experiment.

Why do they need those skills?

All scientists need to be able to• Communicate with others• Solve problems• Think clearly In order to do these they must use

their _________

Senses• What are the senses?______________________________________________________________________________________________________________

Senses• What are the senses?

SEEINGHEARINGTOUCHSMELLTASTE

SensesSEEING uses your

HEARING uses yourTOUCH uses yourSMELL uses yourTASTE uses your

And these are all linked to your ________ by the ____________ system.

SensesSEEING uses your EYES

HEARING uses your EARSTOUCH uses your HANDSSMELL uses your NOSE

TASTE uses your TONGUEAnd these are all linked to your BRAIN

by the NERVOUS system.

The Eye• Sees the world upside down

The Ear• Helps us to balance

The Skin• Reacts to temperature, humidity,

pain

The Nose• Affects the taste too

The Tongue• Has lots of taste buds

YOUR TASK• Choose ONE of the senses and write

a journal reflecting on the job you perform each day and how you help people to do different things. (1 page)

• Example – My name is Terry the tongue and I …….

YOUR TASK• Design a rap song, song or a poem

based on the equipment you would find in the laboratory and why it is so important to use it safely.

• 6 – 8 lines.

Before we start…• Before prac – playing it safe in the

lab (click view)• Matching game with equipment

Practical 1Blindfold partner1. Pair up2. Student A is blindfolded3. Student B guides A around the

room, taking care to tell A about obstacles

4. Students switch roles5. Record what it felt like to be led and

what you noticed about giving instructions in student booklet

Practical 2Mystery objects - touch

1. Pair up2. Student A is blindfolded3. Student B selects three objects from the

front4. Student A is to identify the objects

passed to them by B. Student B records the results

5. Students switch roles

Practical 3Mystery objects - smell

1. Pair up2. Student A is blindfolded3. Student B selects three objects from the

front4. Student A is to identify the objects held

under their nose by B. Student B records the results

5. Students switch roles

Practical 4Where does the sound come from?

All students close their eyesStudents to walk around the roomWhen a sound is heard student point in the

direction of soundVolunteer will record resultsDiscuss

Basketball video• Basketball

• Watch the video and count how many times the white team passes the ball to each other.

Observing - recording• Draw a map of the laboratory• Mark the safety equipment• Mark on the lab equipment

SafetyWhy do we have safety rules?What rules do you know already?Watch safety videoDesign your own poster

Before we start..Before we start every practical we need to outline our AIM (What we hope to achieve) and our HYPOTHESIS (what we think might happen)Title = Boiling Water PracticalAim =Hypothesis =

Before we start…Now we need to draw up a table for our results

Attempts Time Taken (min/secs)

1.

2.

3.

4.

Lets get started with….Laboratory EquipmentYou must find and place on your desk:• A beaker• Safety goggles• A heatproof mat• A pencil/pen and our workbooks• A measuring cylinder• Bunsen Burner• Gauze mat • Tripod• Boss• Retort stand

Boiling Water PracticalMethod1. Put on safety goggles and apron 2. Set up your Bunsen burner as practiced but leave burner UNLIT! (heat proof mat under Bunsen, Bunsen attached to gas)3. Measure out 20mls of water into your beaker using your measuring cylinder4. Light your Bunsen Burner then put tripod and gauze mat ontop.

Boiling Water Prac (cont.)5. Place beaker ontop of tripod (carefully) and start stopwatch6. Once water begins to bubble stop timing.7. Attempt steps 1-6 three more times and record the result in your table. 8. Draw a graph using the next slide as an example.

Graphing our results

Atempt 1 Attempt 2 Attempt 3 Attempt 40

1

2

3

4

5

The time taken for water to boil using a Bunsen Burner

Time Taken (Mins)

So what happened?Discussion 1.Why did we do this practical 3

times?2.Did the time taken for the water to

boil vary? Why/why not?3.What conclusions can you draw from

your results? Conclusion?

Equipment – drawing and diagrams

Can you match them up?

Equipment – drawing and diagrams

Can you identify the equipment from it’s diagram?

Laboratory EquipmentName Drawing DiagramTest tube xBeaker xGauze XBunsen Burner XHeat proof mat XTripod XThermometerFilter funnel xConical flaskBoss, clamp & standMeasuring cylinder xMirrorBatteryLens xStopwatch

Using a Bunsen burner• Flame colours• Safety• Lighting the burner correctly

Practical write -ups• Watch video• Read through guidelines

What is needed in a write-up?

GraphsList the types of graph that you

knowDid you get

Bar chartLine graph

Scatter graph

Choosing the right graphIn Science we nearly always use line

graphs to illustrate our findings.

Bar charts are used to show results from surveys OR when data is not numerical

Scatter graphs are rarely used

Measuring devicesHow many instruments can

you name that measure…

1. Time2. Length3. Mass

Time• Stopwatch Y• Watch Y/N• Sun N• Clock Y/N• Computer Y/N• Stars/moon N• Body clock N• Phone Y/N• Television N• Sand timer N• Fixture/timetable N

Length• Ruler Y• Measuring tape Y• Trundle wheel Y/N• Walking/ pedometres N• Limbs/handspan/body parts N• Laser N

Mass• Scale Y• Hefting Y/N • Beaker Y/N• Displacement method Y• Test tube N

How could we test each of these?TASK - Outline a practical (Aim and hypothesis) that would allow data to be collected using each of these measuring devices.

• E.g Time = Aim – To measure the time it would take a human to carry a washing machine 100m.Hypothesis – The heavier the washing machine, the greater the time taken to cover 100m.

How could we test it further? TASK – for ONE of your outlined practical's, design a materials list, method, predict results (see me if confused!!) draw a graph or table and write a conclusion to test your practical.

Units of measurementIn Science we have an agreement to

use universal units … SI unitsMeasurement

Unit Symbol

Length Metre mMass Kilogram kgTime Second sTemperature Degree

celsius◦C

Volume Cubic metre m3

Temperature Practical• What measures temperature?• What could we measure the

temperature of?• How can we control the temperature?• How many readings do we take?

Practical circus• Measuring mass• Measuring volume• Measuring length• Measuring volume of irregular object• Measuring time