diff --git a/tde-i18n-eo/messages/tdeedu/kalzium.po b/tde-i18n-eo/messages/tdeedu/kalzium.po
index 6d17001d25f..2b0bda70e6f 100644
--- a/tde-i18n-eo/messages/tdeedu/kalzium.po
+++ b/tde-i18n-eo/messages/tdeedu/kalzium.po
@@ -2,18 +2,21 @@
 # Axel Rousseau, <axel@esperanto-jeunes.org>, 2007.
 # Pierre-Marie Pédrot <pedrotpmx@wanadoo.fr>, 2007.
 # Heiko Evermann, <heiko@evermann.de>, ?.
+# Thomas CORDONNIER <t_cordonnier@yahoo.fr>, 2020.
 msgid ""
 msgstr ""
 "Project-Id-Version: kalzium\n"
 "POT-Creation-Date: 2020-05-11 04:05+0200\n"
-"PO-Revision-Date: 2007-10-17 15:03+0100\n"
-"Last-Translator: Axel Rousseau <axel@esperanto-jeunes.org>\n"
-"Language-Team: esperanto <kde-i18n-eo@kde.org>\n"
-"Language: \n"
+"PO-Revision-Date: 2020-11-01 17:48+0000\n"
+"Last-Translator: Thomas CORDONNIER <t_cordonnier@yahoo.fr>\n"
+"Language-Team: Esperanto <https://mirror.git.trinitydesktop.org/weblate/"
+"projects/tdeedu/kalzium/eo/>\n"
+"Language: eo\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Generator: KBabel 1.11.4\n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"X-Generator: Weblate 4.2.2\n"
 "X-Poedit-Language: Esperanto\n"
 
 #. Instead of a literal translation, add your name to the end of the list (separated by a comma).
@@ -1598,7 +1601,7 @@ msgstr "Rentgenio "
 #: data/knowledge.xml:4
 #, no-c-format
 msgid "State of matter"
-msgstr ""
+msgstr "Materia stato"
 
 #: data/knowledge.xml:5
 #, no-c-format
@@ -1620,7 +1623,7 @@ msgstr "Fandpunkto"
 #: data/knowledge.xml:12
 #, no-c-format
 msgid "Chemical Symbol"
-msgstr ""
+msgstr "Ĥemika Simbolo"
 
 #: data/knowledge.xml:13
 #, no-c-format
@@ -1689,7 +1692,7 @@ msgstr ""
 #: data/knowledge.xml:38 data/knowledge.xml:46
 #, no-c-format
 msgid "Mix"
-msgstr ""
+msgstr "Mikso"
 
 #: data/knowledge.xml:42
 #, no-c-format
@@ -1714,7 +1717,7 @@ msgstr ""
 #: data/knowledge.xml:50
 #, no-c-format
 msgid "Accuracy"
-msgstr ""
+msgstr "Akurateco"
 
 #: data/knowledge.xml:51
 #, no-c-format
@@ -1799,7 +1802,7 @@ msgstr ""
 #: data/knowledge.xml:82
 #, no-c-format
 msgid "Accuracy and precision"
-msgstr ""
+msgstr "Ekzakto kaj precizeco"
 
 #: data/knowledge.xml:83
 #, no-c-format
@@ -1810,7 +1813,7 @@ msgstr ""
 #: data/knowledge.xml:86
 #, no-c-format
 msgid "Correctness"
-msgstr ""
+msgstr "Korekteco"
 
 #: data/knowledge.xml:87
 #, no-c-format
@@ -1830,7 +1833,7 @@ msgstr ""
 #: data/knowledge.xml:94
 #, no-c-format
 msgid "Significant figures"
-msgstr ""
+msgstr "Signifaj figuroj"
 
 #: data/knowledge.xml:95
 #, no-c-format
@@ -1840,7 +1843,7 @@ msgstr ""
 #: data/knowledge.xml:98
 #, no-c-format
 msgid "Standard deviation"
-msgstr ""
+msgstr "Norma devio"
 
 #: data/knowledge.xml:99
 #, no-c-format
@@ -1850,12 +1853,12 @@ msgstr ""
 #: data/knowledge.xml:102
 #, no-c-format
 msgid "Suspension"
-msgstr ""
+msgstr "Suspensio"
 
 #: data/knowledge.xml:103
 #, no-c-format
 msgid "Heterogeneous mix consisting of a liquid and solid matter."
-msgstr ""
+msgstr "Heterogena miksaĵo el likva kaj solida materio."
 
 #: data/knowledge.xml:106
 #, no-c-format
@@ -2060,7 +2063,7 @@ msgstr ""
 #: data/knowledge.xml:211
 #, no-c-format
 msgid "Beta rays"
-msgstr ""
+msgstr "Beta-radioj"
 
 #: data/knowledge.xml:212
 #, no-c-format
@@ -2196,7 +2199,7 @@ msgstr ""
 #: data/tools.xml:17
 #, no-c-format
 msgid "Spatula"
-msgstr ""
+msgstr "Spatelo"
 
 #: data/tools.xml:18
 #, no-c-format
@@ -2267,7 +2270,7 @@ msgstr ""
 #: data/tools.xml:42
 #, no-c-format
 msgid "Cork Ring"
-msgstr ""
+msgstr "Korka Ringo"
 
 #: data/tools.xml:43
 #, no-c-format
@@ -2390,7 +2393,7 @@ msgstr ""
 #: data/tools.xml:87
 #, no-c-format
 msgid "Test Tube"
-msgstr ""
+msgstr "Provtubo"
 
 #: data/tools.xml:88
 #, no-c-format
@@ -2482,7 +2485,7 @@ msgstr ""
 #: data/tools.xml:122
 #, no-c-format
 msgid "Thermometer"
-msgstr ""
+msgstr "Termometro"
 
 #: data/tools.xml:123
 #, no-c-format
@@ -2574,7 +2577,7 @@ msgstr ""
 #: data/tools.xml:158
 #, no-c-format
 msgid "Scales"
-msgstr ""
+msgstr "Skaloj"
 
 #: data/tools.xml:159
 #, no-c-format
@@ -2605,7 +2608,7 @@ msgstr ""
 #: data/tools.xml:169
 #, no-c-format
 msgid "Syringe"
-msgstr ""
+msgstr "Injektilo"
 
 #: data/tools.xml:170
 #, no-c-format