Vocabulary1
Vocabulary2
Vocabulary 3
Relative
Past Perfect
100

This person studies living organisms.

Biologist

100

In the lab, we will _______ to test how temperature affects reaction speed.


do an experiment

100

The opposite of expensive.

Inexpensive

100

This word refers to places: "This is the town ___ I grew up."

where

100

She didn’t pass the test because she ______ (not study).  

(hadn't studied)

200

This person conducts research to learn new things.

Researcher

200

Marie Curie managed to ________ that changed the world of physics.

make a discovery  

200

A tool that’s convenient and portable.

Handy

200

This pronoun is used for things: "That's the phone ___ I lost."

which/ that
200

They were hungry because they ______ (not eat).  

(hadn't eaten)

300

This person designs experiments and makes scientific discoveries.

physicist

300

You should ________to find the cause of the strange noise in the engine.

investigate something  

300

This describes something you can wear, like a smartwatch.

wearable

300

This adverb refers to time: "Saturday is the day ___ we met."

when

300

He had left the office ______ I got there.

 before

400

This person studies chemicals and how they react.

chemist

400

1.Scientists often need to_____________ when facing unexpected problems in their research.


2.In order to solve the problem of plastic pollution, the students decided to ________ that turns plastic waste into building materials.


1.come up with a solution


2. create an invention

400

1.This describes something that doesn't work as expected and is poorly built.


2.Not pleasant to wear or use.

1.Badly made


2.uncomfortable

400

1.This word shows possession: "She’s the teacher ___ lessons I love."  

2. I need the book _______ explains this grammar rule. 

1.whose

2.that/which

400

1.What ______ she ______  (do)before the meeting started? 

 2.I had just cooked dinner ______ they walked in.

1.(had / done)


2.when

500

1.This person explores the natural world through observation and experiments.


2.This person treats people who are sick.



1.scientist



2.doctor

500

1. The teacher told us to_______ on renewable energy for our project.

2. Before launching a new phone, companies ________ to improve its performance.

1.research something 

2.develop a product

500

1.A word that means something is both new and creative.

2.This is the opposite of "practical" or "useful".

1.Innovative

2.Useless

500

1.This word is used for people: "He's the man ___ fixed my computer."  


2.That’s the restaurant _______ we had dinner last Friday.

1.who/that



2.where

500

1.______ she arrived, I had already called the doctor.

2. ______ they ______  (go)to the museum before it closed? 

1. By the time

2. (Had / gone)  

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